八幡ねじ List of Products and Services

Our company has developed an in-house "bagging system" that focuses on "quality" and "cost" to solve the challenges of screws and assemblies. High-quality management is achieved with two sensors. The "counting sensor" captures products on a surface and can detect products falling while rotating, while the "weight sensor" inspects the total weight of the bagged items and performs the final check. We bag everything from "general items" to "special processed items" sourced through our network. Up to four parts can be bagged with standard machines. For five or more parts, please consult us. 【Features】 ■ Counting Sensor - Captures products on a surface and can detect products falling while rotating - Allows for quantity setting and counts the products to be bagged ■ Weight Sensor - Inspects the total weight of the bagged items and performs the final check - Abnormal items are automatically ejected to prevent mixing with good products *For more details, please refer to the PDF document or feel free to contact us.

• Other services
• Other packaging machines
• bolt

"Haika" is a high-performance tapping screw specially designed for efforts to reduce weight using high-tensile steel plates. It offers excellent cutting performance with surface hardness that rivals high-tensile steel plates. The high torque ratio makes it easy to set the tightening torque. Additionally, it penetrates the counterpart material smoothly, allowing for low screwing torque and easy fastening. 【Features】 - "Surface hardness" and "cutting performance" that rival high-tensile steel plates - High surface hardness due to the adoption of new materials, with lower hardness in the core - Ensures internal toughness to prevent brittle fracture - The carburized layer on the surface is uniform, ensuring cutting performance - The core has a uniform martensitic structure *For more details, please refer to the PDF document or feel free to contact us.

• bolt

The "Alu-Arma PT" is an aluminum tapping screw specifically designed for resin, using the widely adopted A6056 material found in automobiles. Thanks to the high-strength coating "Alu-Arma," it can be used broadly from soft to hard resins. It can reduce the impact of axial force reduction due to thermal expansion differences compared to iron tapping screws. 【Features】 ■ Lightweight and high strength ■ Safe and reliable materials and manufacturing technology ■ Forms a uniform anodized coating with Alu-Arma treatment ■ Resistant to loosening ■ Can mitigate the effects of axial force reduction due to thermal expansion differences *For more details, please refer to the PDF document or feel free to contact us.

• bolt

At Yahata Screw Co., Ltd., we handle "POP Rivets." We offer a variety of products, including "Kareinuts," which provide high installation strength due to the neck area below the head, "Large Flange Rivets," which are effective when the pilot hole diameter in the flange side base material is larger, and "CC Rivets" for circuit boards and electronic components. You can choose according to your needs. 【Product Lineup】 ■ Press Fastener Series ■ Blind Rivet Series ■ Blind Nut System *For more details, please refer to the PDF materials or feel free to contact us.

• nut

The "Rolled Trapezoidal Screw" has a trapezoidal screw shape with a 30° angle for both the male and female threads, allowing it to bear loads on its surface and withstand high loads. The nut is made of bronze, which has excellent sliding properties and can endure high loads. Additionally, the screw shaft is formed by rolling, resulting in a uniform shape, and the surface of the screw is smooth and has excellent wear resistance. 【Features】 ■ Capable of processing left and right trapezoidal screws ■ Capable of processing multi-thread trapezoidal screws ■ Trapezoidal screw rolling possible for aluminum and hollow materials ■ Both male and female threads have a 30° trapezoidal screw shape, allowing them to bear loads on their surface and withstand high loads ■ Custom products beyond standard specifications are also accepted *For more details, please refer to the PDF document or feel free to contact us.

• bolt
• nut

The "Trapezoidal Thread" has a trapezoidal cross-section, making it easy to achieve axial precision during assembly. It is suitable for applications that bear thrust loads or high loads. The nut uses the durable "BC-6" material. We offer two types: straight type and flange type. 【Features】 ■ The thread cross-section is trapezoidal ■ Easy to achieve axial precision during assembly ■ Suitable for applications that bear thrust loads or high loads ■ The nut uses the durable "BC-6" material ■ Available in two types: straight type and flange type *For more details, please refer to the PDF document or feel free to contact us.

• bolt
• nut

The "Gypsum Pin for Hardware" is a special pin designed specifically for securing hardware to gypsum board walls. It features a unique ring pin that allows the wallpaper to return when removed, making the removal marks inconspicuous. Additionally, it comes with both installation and removal tools, making it easy to use. Made from polycarbonate material, it is designed to be unobtrusive even when it protrudes from the hardware. 【Features】 ■ Simply tighten the hardware with the cap using the pin ■ Attaches hardware with minimal holes in the wall ■ Removal marks are not noticeable ■ Load capacity of 9kg (per piece) ■ Comes with dedicated tools *For more details, please refer to the PDF document or feel free to contact us.

• bolt
• nut

The "sliding screw" is a screw that achieves high-speed linear motion and space-saving design. The resin nut is made from PPS as the base material, and a special resin with added solid lubricants (such as fluororesin) is used to improve sliding characteristics. Compared to polypropylene, nylon, and polyacetal, it is made from a material that excels in sliding performance, heat resistance, and water absorption, operates with lower noise compared to ball screws, and slides more lightly with lower torque than trapezoidal screws. 【Features】 ■ High efficiency achieved through excellent sliding properties ■ The resin nut is based on PPS ■ A special resin with added solid lubricants (such as fluororesin) is used to enhance sliding characteristics ■ Lower noise compared to ball screws ■ Slides more lightly with lower torque than trapezoidal screws *For more details, please refer to the PDF document or feel free to contact us.

• bolt
• nut

The "Concrete Screw Anchor Ultra Cut FBS" allows for easy installation with an impact wrench, and you can visually confirm that the tightening is complete. It can be loosened for position adjustment or completely removed. Since it is a screw type, it places less burden on the base material. Additionally, we also offer a "Dust Collection Drill Bit" that makes concrete anchor installation easy, allowing for simultaneous drilling and dust collection, which shortens work time. 【Features】 ■ Easier and stronger than core rod driven types ■ Easy installation ■ Less prone to cracking concrete ■ Removable *For more details, please refer to the PDF document or feel free to contact us.

• nut
• bolt
• Other consumables

"Unifast" is a tapping screw for thin plates that can be fastened to a wide range of plate thicknesses from 0.2mm to 0.8mm. It allows for safe and strong fastening due to its low screwing torque and high breaking torque. It can be used in various industries aiming to improve productivity, achieving parts standardization and stable fastening. 【Features】 ■ Speedy fastening: Fastening time is about half that of JIS products ■ Parts standardization: Compatible with a wide range of plate thicknesses from 0.2t to 0.8t ■ Stable fastening ■ No need for burring processing ■ Reduction in the number of parts through parts standardization ■ The leading part has two of the three threads with lower thread height, reducing screwing torque ■ All three thread heights are aligned at the neck, allowing for strong fastening *For more details, please refer to the PDF materials or feel free to contact us.

• bolt
• Other machine elements

The "pierce nut" is a nut that can create holes and be crimped using the nut itself. No need for pre-drilling or alignment of pilot holes. It allows for the joining of dissimilar metals and the bonding of resin to metal, which is not possible with welding. Additionally, since the joining condition can be visually confirmed, reliability is also improved. 【Features】 ■ No pilot hole required: No need for pre-drilling or alignment of pilot holes ■ Dissimilar metal joining: Allows for the bonding of dissimilar metals and resin to metal, which cannot be welded ■ No welding: Visual confirmation of fastening condition and omission of welding condition settings ■ The nut itself acts as a punch, creating holes in the sheet material while simultaneously crimping the joined components securely *For more details, please refer to the PDF document or feel free to contact us.

• nut
• Other machine elements

The "Paint Stripping Bolt" is a bolt that fastens while stripping the paint from the threaded area. There is no need for masking or re-tapping during painting. It fastens without seizing even when removing spatter from welded nuts or dealing with distortion, ensuring good contact with the female thread and significantly improving grounding performance. Additionally, its drill-like shape results in a low screwing torque, maintaining high productivity with the same process as standard screws. 【Features】 ■ Fastens while stripping paint from the threaded area ■ No need for masking or re-tapping during painting ■ Fastens without seizing when removing spatter from welded nuts or dealing with distortion ■ Good contact with the female thread, greatly improving grounding performance ■ Drill-like shape with low screwing torque ■ Maintains high productivity with the same process as standard screws *For more details, please refer to the PDF document or feel free to contact us.

• bolt
• Other machine elements

The "GRIPPLE Lockable Plus System" can be used as an easy and safe fall prevention measure. It consists of two components and can be secured in three steps, significantly reducing construction time. Designed with considerations for sway and vibration during disasters such as earthquakes, as well as for suspending heavy objects, it can be used in a wide range of fields, including public institutions (schools, stations, etc.), manufacturing facilities, and road signs across the country. 【Features】 ■ Easy and safe fall prevention measures ■ Significant reduction in construction time ■ High safety due to double lock functionality ■ Designed for sway and vibration measures during disasters such as earthquakes and for suspending heavy objects ■ Usable in a wide range of fields *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements
• Other safety and hygiene products

The "Wedge Lock Bolt" features an asymmetric thread profile in the valley and utilizes a wedge surface to provide a powerful anti-loosening effect. It prevents loosening simply by tightening. It can be reused by reducing the adhesive application process. Additionally, it allows for anti-loosening in blind hole environments where nuts cannot be used. 【Features】 ■ Reduction of adhesive ■ High anti-loosening performance - Junker: Residual axial force of over 80% - NAS method: 17 minutes of durability (3000 cycles) ■ Usable in blind holes *For more details, please refer to the PDF document or feel free to contact us.

• bolt
• Other machine elements

We offer "wedge nuts" featuring an asymmetric thread profile (wedge surface) in our company. The wedge surface disperses stress and applies load, demonstrating a powerful anti-loosening effect. Our lineup includes "iron wedge nuts," as well as special shapes such as "cap-type wedge nuts" and "clip wedge nuts." We also accept requests for materials and surface treatments other than the basic specifications. Please feel free to consult us. 【Product Lineup】 ■ Iron wedge nuts ■ Special shape products ■ Stainless steel wedge nuts ■ Square welded wedge nuts *For more details, please refer to the PDF materials or feel free to contact us.

• nut
• Other machine elements

The "wedge nut" features an asymmetric thread profile in the valley and utilizes a wedging surface to provide a strong anti-loosening effect. It achieves an easy-to-introduce price with a simple manufacturing process. Like standard nuts, it can be lightly inserted by hand without resistance until it seats. 【Features】 ■ High anti-loosening performance - NAS3350 vibration test: 17 minutes durability *30,000 cycles - Junker vibration test: residual axial force over 60% ■ Improved work efficiency ■ Easy-to-introduce price *For more details, please refer to the PDF document or feel free to contact us.

• nut
• Other machine elements

This product is an insert nut that achieves high knurling peaks through special rolling technology. By realizing high torque strength, it prevents the destruction of resin products due to rotation. It improves the "fastening strength" and "pull-out strength" that conventional insert nuts cannot withstand. 【Features】 ■ High pull-out strength: Approximately twice the strength compared to brass insert nuts ■ Lightweight: About one-third the weight compared to brass insert nuts ■ Environmentally friendly: Made of aluminum (A6061), compliant with RoHS lead regulations ■ Prevents the rotation of the insert nut ■ Space-saving for resin products *For more details, please refer to the PDF document or feel free to contact us.

• nut
• Other machine elements

This product is an insert nut that is easy to use and excels in balance in various aspects such as holding power and cost. Made of aluminum, it complies with RoHS lead regulations. Compared to brass insert nuts, it boasts equivalent strength while weighing about one-third. We offer two types: "diagonal knurling" and "iris knurling," which can be used in various situations as inserts after molding. 【Features】 ■ High quality: Equivalent strength compared to brass insert nuts ■ Lightweight: Weighs about one-third compared to brass insert nuts ■ Environmentally friendly: Complies with RoHS lead regulations ■ Two types of knurling available: diagonal type and iris type *For more details, please refer to the PDF materials or feel free to contact us.

• nut
• Other machine elements

The "SPR" is a type of rivet that penetrates the upper base material while not penetrating the lower base material, securing it by embedding. It enables the joining of dissimilar metals and the combination of resin and metal where welding is not possible. The SPR, which allows for non-destructive testing (dimensional inspection), is used in applications such as construction scaffolding as a countermeasure against welding defects. 【Features】 ■ No pilot hole required: No need for pilot hole processing or alignment ■ Dissimilar metal joining: Enables joining of dissimilar metals and resin to metal where welding is not possible ■ No welding: Visual confirmation of fastening and omission of welding condition settings ■ Shear strength equivalent to spot welding ■ Low variability and stable fastening *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements
• bolt

The "Wedge Lock Bolt" is a loosening prevention bolt that firmly locks in place by utilizing a special valley-shaped design that exhibits a wedging effect. By simply tightening it, it prevents loosening and reduces the need for adhesive application, while also allowing for repeated use. Additionally, it can prevent loosening in bag hole environments where nuts cannot be used. It has passed the Junker test and NAS vibration test. 【Features】 ■ Reduction of adhesive ■ Passed two types of vibration tests - Junker vibration test: Residual axial force of 85% or more - NAS3350 vibration test: 17 minutes (30,000 cycles) durability ■ Usable in bag holes *For more details, please refer to the PDF document or feel free to contact us.

• bolt

Yahata's "forging technology" enables the reduction of manufacturing processes. Our company proposes suitable manufacturing methods based on forging technology, including cutting, pressing, and rolling. For example, products that were traditionally processed using forging and riveting can now be processed into their final shape through cold forging, allowing for a reduction in the riveting process. Furthermore, lightweight designs can be achieved through thin-walled forging. 【Features】 ■ Reduction of manufacturing processes ■ Proposing suitable manufacturing methods based on forging technology ■ Lightweight design through thin-walled structures *For more details, please refer to the PDF document or feel free to contact us.

• Other processing machines
• others

The "multi-spindle automatic lathe" is a cutting machine that significantly shortens the cycle time of machining by dividing processes across 6 to 8 stations. It comes in two types: a bar type that processes from bar stock and a chuck type that performs additional machining from forged blanks. In NC lathes, the cycle time is the sum of the machining times for each process, whereas in a multi-spindle automatic lathe, the cycle time of the product is determined by the longest machining time among the processes, contributing to improved production efficiency. 【Features】 ■ Processes are distributed across 6 to 8 stations ■ The longest machining time among processes determines the cycle time ■ Significantly shortens the cycle time of machining ■ Production efficiency is approximately 4.5 times *For more details, please refer to the PDF document or feel free to contact us.

• lathe
• Other processing machines

The "Motion Tight" is a loosening prevention bolt that exhibits a strong anti-loosening effect by increasing the reaction force of the screw thread through a special thread shape and dispersing stress. The special thread shape prevents variations in axial force, resulting in a more reliable fastening strength. The method of use is the same as conventional bolts; it functions simply by being tightened. 【Features】 ■ Loosening prevention ■ Axial force stability ■ Improved workability ■ High fatigue strength *For more details, please refer to the PDF document or feel free to contact us.

• bolt

Yahata Screw's "Microdent Treatment" offers a wide range of products suitable for friction countermeasures in drive components. It excels in corrosion resistance, chemical resistance, and wear resistance compared to hard chrome, and due to its low dust generation, it solves problems that cannot be addressed by electroless nickel or hard chrome. It is used in various applications, primarily in precision and rust-resistant requirements, including semiconductor manufacturing equipment, FPD manufacturing equipment, cleanroom structural components, suction tables, and aircraft parts. 【Features】 ■ Superior corrosion resistance and chemical resistance compared to hard chrome ■ Thin, uniform film thickness with high adhesion ■ Low dust generation and excellent wear resistance ■ Excellent light scattering properties, preventing stray reflections from positioning lasers ■ Beautiful jet-black finish that adds a sense of luxury to products *For more details, please refer to the PDF document or feel free to contact us.

• bolt
• Surface treatment contract service

"Checkle" is a fastening bolt that can accommodate a wide range of plate thicknesses with just one piece. This product eliminates the need for pre- and post-processes required during welding. It can perform fastening regardless of the type of counterpart metal, such as aluminum plates, galvanized steel plates, or color steel plates, and allows for visual confirmation of the fastening condition. By proposing an automatic supply system, it enables high productivity and flexible adaptation to existing production lines. 【Features】 ■ No welding required ■ Wide range of compatible plate thicknesses ■ Flexible adaptation regardless of the type of counterpart metal ■ Increased reliability due to visual confirmation of fastening condition ■ Cost reduction *For more details, please refer to the PDF document or feel free to contact us.

• bolt

The "seal washer" has a rubber part that deeply penetrates the threaded section of the bolt, providing a strong seal against liquids and gases. It has high airtightness and does not require O-ring groove processing at the fastening part. Additionally, the type of rubber can be selected according to the application. 【Features】 ■ High airtightness ■ No additional processing required ■ Lineup according to application *For more details, please refer to the PDF document or feel free to contact us.

• Sealing
• nut
• others

"Aluama" is an aluminum fastener that excels in strength, corrosion resistance, and insulation due to a special anodizing treatment. In conventional hard anodizing processes, the peaks and valleys of the screw threads were prone to corrosion and cracking due to the thin film. This product forms a uniform coating, eliminating concerns about corrosion and cracking. It also achieves tensile strength comparable to that of standard iron screws. It exhibits high electrical resistance even at 500V, making it suitable for electrical contact prevention. 【Features】 ■ Forms a uniform coating ■ No concerns about corrosion or cracking ■ Excellent strength, corrosion resistance, and insulation ■ Comparable tensile strength to standard iron screws *For more details, please refer to the PDF document or feel free to contact us.

• bolt

This document introduces the 'YT Series,' which has achieved high quality and high cost performance through the involvement of Yahata Neji from the manufacturing stage. We offer a lineup that includes the "Core Rod Driven YT Anchor," "Body Driven YT Plug," "YT Stainless Cap," and "YT Eye Nut." We provide a wide range of products and reliable quality at reasonable prices. We also accept special orders, so please feel free to consult with us. [Featured Products] ■ Core Rod Driven YT Anchor ■ YT Cap ■ YT Eye Bolt ■ Body Driven YT Plug ■ YT Stainless Cap ■ YT Eye Nut *For more details, please refer to the PDF document or feel free to contact us.

• bolt
• nut

The "YT Cap" is a cap meticulously crafted by Yahata Screw to meet our customers' "more" needs. The material is SCM435 (black oxide coating), available in sizes from M5 to M20. We are involved from the manufacturing stage, achieving high quality and excellent cost performance. 【Features】 ■ High-quality structure of heat-treated alloy steel ■ Good fiber flow ■ JIS mark display system certification obtained ■ Material: SCM435 (black oxide coating) ■ Standard: JIS B1176 *For more details, please refer to the PDF document or feel free to contact us.

• bolt

The "YT Eye Bolt" is a product that has been involved with Yahata Screw from the manufacturing stage, achieving high quality and excellent cost performance. It features precise seating surfaces that meet JIS standards, accurate perpendicularity between the screw and the seating surface, excellent surface flatness, and good surface finish. Great care has also been taken with its appearance, and it has been adopted by many major users. 【Features】 ■ Excellent surface flatness ■ Accurate perpendicularity between the ring and the seating surface ■ A mark of quality, neck radius ■ Good surface finish *For more details, please refer to the PDF document or feel free to contact us.

• bolt

"YT AINAT" is a product that has been involved with Yahata Screw from the manufacturing stage, achieving high quality and excellent cost performance. This product has precise perpendicularity between the ring and the seating surface, and possesses excellent surface accuracy in accordance with JIS standards. Additionally, great care has been taken with its appearance, and it has been adopted by many major users. 【Features】 ■ Excellent surface accuracy of the seating surface ■ Accurate perpendicularity between the ring and the seating surface ■ Good surface finish *For more details, please refer to the PDF document or feel free to contact us.

• nut

"STRUX" is a stud bolt that can be securely assembled to the counterpart material using stop projections, retaining grooves, and a pilot hole correction ring. Compared to other studs, it can be easily assembled with various metals and strength specifications, achieving significantly higher reliability and productivity. Additionally, it eliminates the need for excess power, expensive ancillary equipment, and maintenance costs, preventing unforeseen troubles and reducing total costs. 【Features】 ■ No need for excess power, expensive ancillary equipment, or maintenance costs ■ Prevents unforeseen troubles and reduces total costs ■ Possible weight reduction through size reduction ■ Achieves high reliability and productivity *For more details, please refer to the PDF document or feel free to contact us.

• bolt

At Yahata Screw, we offer RoHS II compliant 'Insert Nuts'. Our lineup includes high-strength 'High Strength Insert Nuts' made of steel, high-quality 'LC Insert Nuts' made of lead-free brass, and 'Alu Armor Nuts' made of aluminum alloy to prevent electrolysis. You can choose according to your usage environment. 【Features】 《High Strength Insert Nuts》 ■ High knurl height (approximately 0.7 to 0.8 mm) ■ Significantly improved fastening strength and pull-out load ■ Contributes to the resinization, thinning, and miniaturization of products ■ Surface treatment: Trivalent chromate, zinc-nickel alloy plating *For more details, please refer to the PDF materials or feel free to contact us.

• nut

"JNCOAT (JN Coat)" is a high corrosion-resistant coating for zinc and zinc alloy plating that combines plating treatment with painting technology. It exhibits high rust prevention capabilities due to its barrier effect, high adhesion, and repair effect. Three color variations are available: clear, black, and silver. Additionally, with a film thickness of less than 3μm, it minimizes fitting issues and achieves high corrosion resistance and stability when used as a topcoat for trivalent chromium conversion treatment. 【Features】 ■ High corrosion resistance ■ Three color appearances ■ Fit compatibility ■ Control of friction coefficient (friction coefficient: 0.28–0.37μ) *For more details, please refer to the PDF document or feel free to contact us.

• bolt
• Surface treatment contract service

The "Washer-integrated screw for thin plates" features a screw with an incomplete thread section shortened to the limit, enabling fastening to plates thinner than standard products. The screw is firmly fastened right below the spring washer. It prevents head lifting and fastening failures, achieving secure fastening to thin plates. It accommodates various head shapes, and by changing the washer, it can also fasten even thinner plates. 【Features】 ■ Incomplete thread section shortened to the limit ■ Capable of fastening to thin plates ■ Low cost ■ Compatible with various head shapes *For more details, please refer to the PDF document or feel free to contact us.

• nut
• bolt

The "thread rolling technology" maintains high productivity compared to cutting, and is characterized by precision, strength, and the beauty of the finished surface, making it a form of plastic processing. By not cutting, it saves material costs, and the processing speed is fast, which can shorten production days. It is also possible to process trapezoidal screws, rolled sliding screws, splines, and knurling. Rolling can also be done on aluminum materials and pipe materials. 【Features】 ■ Reduces material costs due to plastic processing ■ Fast processing speed shortens production days ■ Good finish quality and improved surface roughness ■ Custom screws can also be accommodated *For more details, please refer to the PDF document or feel free to contact us.

• nut
• bolt
• Plastic processing machines (cutting and rolling)

The "transformed sliding screw" is a functional screw that converts the rotational motion of a motor into linear motion through a screw. The amount of movement per rotation is 45mm, providing high-speed performance. By reducing the contact area, it achieves high efficiency through excellent sliding properties. The resin nut uses a special resin that excels in sliding properties, heat resistance, and water absorption, allowing for low noise and lighter sliding with lower torque compared to trapezoidal screws. 【Features】 ■ Achieves high-speed linear motion and space-saving design ■ Maximum lead of 45mm ■ High efficiency through excellent sliding properties ■ The resin nut uses a special resin with added solid lubricants *For more details, please refer to the PDF document or feel free to contact us.

• nut
• bolt

"Ep Coat" is a surface treatment designed to combat sulfur dioxide gas, featuring a three-layer structure. Sulfur dioxide gas is a gas that has a pungent odor. It is found in emissions from industrial areas and in gases generated in hot spring regions, and it can promote metal corrosion, among other effects. This product has gas resistance and is effective against sulfur dioxide gas. The synergistic effect of the three-layer structure provides powerful overall corrosion resistance. 【Features】 ■ Gas Resistance - Effective against sulfur dioxide gas - Resistant to sulfur dioxide ■ Corrosion Resistance - Salt spray test (JIS Z 2371) shows over 1000 hours of red rust - Composite cycle test (JASO M609-91) shows over 100 cycles of red rust occurrence ■ Chemical Resistance - Passes immersion tests for acid resistance (0.1N sulfuric acid, hydrochloric acid), alkali resistance (0.1N sodium hydroxide, etc.), and oil resistance (gasoline, etc.) *For more details, please refer to the PDF document or feel free to contact us.

• bolt
• Surface treatment contract service

"Altrax" is a tapping screw for lightweight alloys made of aluminum, magnesium, zinc, or die-cast products. It has a high fastening force (axial force), achieving a fastening strength equivalent to or greater than that of bolts (small screws). Additionally, the contact area between the screw threads and the mating material is large, resulting in minimal reduction in fastening force due to environmental changes. The pitch is the same as that of metric screws, allowing for the use of small screws and bolts after forming internal threads with this product. 【Features】 ■ Thread shape - Thread angle 33°: Compared to a 60° thread angle, it has a smaller volume for forming internal threads and lower screwing torque. - Special tip shape: Easy to screw in (close to a triangular shape). ■ Reduction of processes shortens lead time. ■ Cost reduction. *For more details, please refer to the PDF document or feel free to contact us.

• bolt

We offer a wide range of products in nylon resin, metal, and adhesive categories, providing the optimal solution according to your conditions. We also support our customers by providing various strength and environmental material data as needed. 【Features】 - The anti-rotation fins prevent co-rotation within the drill hole. - The wide neck section does not apply expansion pressure, reducing damage to surface materials such as tiles and plaster. For more details, please contact us or download the catalog.

• Other machine elements

The ultra-corrosion-resistant thin film coating "ZEC-COAT" is a colorless and transparent high-corrosion-resistant topcoat specifically designed for zinc substrates. Yahata Screw has established an immediate delivery system with a stock of approximately 100,000 types of fastening parts used in various fields such as automotive, machinery, electronics, medical, and construction. Additionally, we collaborate with our own manufacturing and partner manufacturers to provide the best "product selection," "high quality," "low price," and "reliable delivery times" that our customers demand, including special products for cold forging and machining. 【Features】 ○ By coating zinc-plated surfaces, we can achieve a non-chromium high corrosion-resistant film at a low cost. ○ Coating with trivalent chromate (white and black) significantly enhances rust prevention performance (approximately 5 times the corrosion resistance). → In salt spray tests, white rust occurs after more than 360 hours, and red rust occurs after more than 1500 hours. ○ It has self-healing properties against scratches. For more details, please contact us or download the catalog.

• Surface treatment contract service

"JN COAT Black" is a high corrosion-resistant coating for zinc plating that combines plating treatment with painting technology. Yahata Screw has established an immediate delivery system with a stock of approximately 100,000 types of fastening parts used in various fields such as automotive, machinery, electronics, medical, and construction. Additionally, we collaborate with partner manufacturers for the production of special items through cold forging and cutting, providing our customers with the best "product selection," "high quality," "low prices," and "reliable delivery times" they seek. 【Features】 ○ High corrosion resistance ○ Improved aesthetics ○ Thin film ○ High adhesion For more details, please contact us or download the catalog.

• Surface treatment contract service

"Inner diameter plating" is a new technology that applies plating only to the necessary areas inside cylindrical stainless steel fastening components and machine parts. The location and thickness of the plating can be freely controlled. No plating is applied to the outside. Inner diameter plating is possible even for parts with an inner diameter of 1 millimeter. This technology is a new method of controlling the flow of electricity while keeping plating costs down. It is currently being used in automotive parts and is expected to be an efficient new technology for electrical conduction in the future. Mass production is also possible. 【Features】 ○ Improved electrical conductivity ○ Enhanced sealing properties ○ Low contact resistance For more details, please contact us or download the catalog.

• Surface treatment contract service

The "Kōryoku Insert Nut" has achieved a high knurl shape through transfer-type rolling processing. It is ideal for countermeasures against the phenomenon of nut rotation due to resin deformation during high torque tightening. 【Features】 ○ High torque compatibility ○ Lead-free and compliant with ROHS2 directive For more details, please contact us or download the catalog.

• nut

At Yahata Screw, we perform precision press processing. Starting with the press processing of 0.04mm nichrome foil, we accommodate high aspect ratio processing and the processing of fragile materials, ensuring high precision, thin sheets, and special materials. Furthermore, we achieve cost reduction through high-performance press technology. We provide high product value with processing techniques that break away from conventional thinking. 【Features】 ■ Processing techniques that break away from conventional thinking - T-shaped middle flange shape - Pressing of the end milling part ■ Press processing of 0.04mm nichrome foil - Remarkable mold precision - Significant cost reduction through changes from etching *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract