サンワ・アイ List of Products and Services

At our company, we respond to various processing needs through our "iNetwork," which utilizes the expertise and technical capabilities of over 300 partner factories, starting from in-house manufacturing. We propose optimal processing methods tailored to materials and shapes, covering various processing methods such as cutting, precision machining, forging, pressing and bending, and casting. We accommodate a wide range of processing regardless of strength, shape, material, size, or quantity. Please feel free to consult us regarding any issues with screw fastening parts or metal processed products. 【Features】 - We consider processing methods from the design stage to provide high-quality, low-cost special processed products. - We can also handle surface treatment, coating, heat treatment, and polishing. - Additionally, we contribute to solving procurement challenges by offering assembly solutions that cover everything from component manufacturing and procurement to assembly and packaging, as well as the sale of standard products and short lead-time cutting processing. *For more details, please refer to the PDF document. Feel free to contact us as well.

• Processing Contract

One of our strengths is the I-Network (manufacturing network). By leveraging the technical capabilities and experience of our in-house manufacturing division and over 300 partner factories, we can respond to various processing needs. For forging processing, we propose various types of cold and hot forging to minimize material loss and achieve cost reduction. 【Features】 ■ Applicable materials: SWRCH, SUS304, SUSXM7, C2700, S45C, SCM435, and many more ■ Achievable sizes: Processing diameter φ0.6 to φ90mm, processing length 0.8 to 1200mm ■ Adoption results: Automotive-related, amusement equipment manufacturers, electronics manufacturers, molding machine manufacturers, and others ■ Please consult us even for materials and sizes not listed above *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

One of our strengths, the I-Network (Manufacturing Network), leverages the technical skills and experience of our in-house manufacturing division and over 300 partner factories to meet various processing needs. In "Precision Machining," we cater to the production of high-value-added components that require micron-level tolerance precision. We can handle products with a minimum diameter of φ2.0mm and a minimum length of 0.5mm, accommodating extremely small products. In "Large-Scale Cutting Machining," we utilize NC lathes, machining centers, NC universal milling machines, and long lathes to process large-diameter and long products, with a proven track record in shipbuilding, home air conditioning, commercial air conditioning, and valve manufacturing. Please feel free to contact us when you need assistance. 【Precision Machining Features】 ■ Capable of producing high-value-added components that require micron-level tolerance precision ■ Supported materials: SUS304, SUS303, SS400, SUM, S45C, SCM435, C3604, A5052, and many others ■ Achievable sizes: Minimum diameter of φ2.0mm and minimum length of 0.5mm, capable of handling extremely small products *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

One of our strengths is the I-Network (Manufacturing Network). By leveraging the technical capabilities and experience of our in-house manufacturing department and over 300 partner factories, we can respond to a variety of processing needs. Using this know-how for special processed products, we can provide unified proposals and offerings, which is our strength. Regardless of the lot size, whether it's prototypes or single items, or a variety of products, please feel free to consult with us. 【Features of the In-house Manufacturing Division】 ■ Multiple machines including CNC multi-tasking lathes, multi-functional NC lathes, NC lathes, NC milling machines, general-purpose lathes, and drill presses ■ Integration of manufacturing, sales, quality assurance, and logistics ■ Unique strengths of in-house capabilities *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract

One of our strengths is the I-Network (Manufacturing Network). By leveraging the technical capabilities and experience of our in-house manufacturing division and over 300 partner factories, we are able to meet various processing needs. For cutting processes, we use in-house equipment such as CNC multi-tasking lathes, NC milling machines, and automatic lathes with bar feeders to provide high-quality products. We have accumulated numerous achievements not only with iron, stainless steel, and non-ferrous materials but also with difficult-to-machine materials. 【Features】 - Supported materials: SUS304, SUS303, SS400, SUM, S45C, SCM435, C3604, A5052, and many others - Achievable sizes: Diameter φ3 to φ250 - Proven applications: Shipbuilding, residential air conditioning, commercial air conditioning, valve manufacturers, amusement equipment manufacturers, and more - Please consult us even for materials and sizes not listed above *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Sanwa Ai is a specialized trading company for fastening components such as screws, delivering quality assurance from general fastening parts to specially processed products made in-house. We offer products with reliable quality that accommodate various materials and a wide range of sizes. We have a diverse and extensive selection of hundreds of thousands of products, including JIS standards, organizational standards, and manufacturer standards. Through the manufacturing and sales of screws and fastening components, we contribute to people's safe and prosperous lives and the development of the manufacturing industry. 【Products Offered (Partial)】 <Standard Products> ■ Carbon steel, alloy steel, and iron products ■ Non-ferrous metals ■ Plastics ■ Stainless steel ■ Imported goods *For more details, please refer to the PDF materials or feel free to contact us.

• Other machine elements
• Contract manufacturing
• nut

At Sanwa Ai, we handle "seal washers." This is a set product that incorporates a rubber packing into a metal-formed bowl-shaped washer. The rubber packing is press-fitted onto the threaded part of the bolt, sealing the fluid at the side. We use SUS304, which is resistant to rust, as the standard material, and we offer packings made of NBR (standard specification), silicone, fluororubber, and EPDM. 【Features】 ■ Suitable for preventing gas and liquid leakage ■ Passed pressure tests of 200 atmospheres (20 MPa) ■ Provides sufficient performance even when used directly on the surfaces of black steel and cast iron ■ Vibration damping and sound insulation effects ■ The metal and rubber packing do not resonate with vibrations *For more details, please refer to the PDF materials or feel free to contact us.

• nut

At Sanwa Ai, we handle "Seal Washers." This is a set product that incorporates a rubber packing into a metal-formed bowl-shaped washer. The rubber packing is press-fitted onto the threaded part of the bolt, sealing the fluid at the side. Additionally, this product has passed a pressure test of 200 atmospheres (20 MPa). Please feel free to contact us when you need assistance. 【Features】 ■ Suitable for preventing gas and liquid leakage ■ Passed a pressure test of 200 atmospheres (20 MPa) ■ Demonstrates sufficient performance even when used directly on the surfaces of black steel and cast iron ■ Vibration damping and soundproofing effects ■ The metal and rubber packing do not resonate with vibrations *For more details, please refer to the PDF document or feel free to contact us.

• nut

At Sanwa Ai, we handle "seal washers." This is a set product that incorporates a rubber packing into a metal-drawn bowl-shaped washer. The rubber packing is press-fitted onto the threaded part of the bolt, sealing the fluid at the side. Designed to minimize rubber overflow even under proper torque tightening, we use SUS304, which is resistant to rust, as the standard material. The packing options available are NBR (standard specification), silicone, fluororubber, and EPDM. 【Features】 - Suitable for preventing gas and liquid leakage - Passed pressure test of 200 atmospheres (20 MPa) - Demonstrates sufficient performance even when used directly on the surface of black steel and cast iron - Vibration damping and noise reduction effects - Metal and rubber packing do not resonate with vibrations *For more details, please refer to the PDF materials or feel free to contact us.

• nut

We offer the "Flat Washer 300HV" to avoid the risk of sinking during bolt fastening. This product prevents sinking of the bolt seating surface, which is a cause of loosening of bolts and nuts, and can be used to stabilize the seating surface when the hole diameter is larger than the bolt diameter. The material used is S45C to S55C (domestic material), and it undergoes bright hardening and tempering heat treatment. 【Features】 ■ JIS B 1256:2008 ■ Recommended for use with screw part strength classification 10.9 (JIS B 1061:2020) ■ Marked with hardness classification 300HV ■ Compatible with mill sheets and inspection certificates *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

We would like to introduce the "Flat Washer 300HV" handled by Sanwa Ai. It prevents the nut or bolt head from sinking into the joined material. When the hole diameter is larger than the bolt diameter, it can be used to stabilize the seating surface. The material used is S45C to S55C (domestic material), and it undergoes bright quenching and tempering heat treatment. 【Features】 ■ JIS B 1256:2008 ■ Recommended for combination with screw part strength classification 10.9 (JIS B 1061:2020) ■ Marked with hardness classification 300HV ■ Compatible with mill sheets and inspection certificates *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

We would like to introduce the "Flat Washer 300HV" handled by Sanwa Ai. It prevents the nut or bolt head from sinking into the joined material. When the hole diameter is larger than the bolt diameter, it can be used to stabilize the seating surface. Additionally, it has undergone quenching and tempering heat treatment. Please feel free to contact us when you need it. 【Features】 ■ JIS B 1256:2008 ■ Recommended combination with screw part strength classification 10.9 (JIS B 1061:2020) ■ Material: S45C to S55C (domestic material) ■ Marked with hardness classification 300HV ■ Mill sheet and inspection certificate available *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The molten zinc-aluminum alloy coating "GALVA LEO" is a high corrosion-resistant coating that contains 5% aluminum and 1% magnesium based on molten zinc. It demonstrates excellent corrosion resistance in a wide range of fields, including salt damage, heavy industrial areas, civil engineering, construction, electricity, telecommunications, and railways. 【Features】 ■ Compliant with RoHS, JIS certified (JIS H 8643) ■ Proven performance of over 10,000 hours in salt spray tests (in accordance with JIS Z 2371) ■ Suitable for bolts, nuts, and washers ■ High adhesion, with adhesion to iron equivalent to that of molten zinc coatings *For more details, please refer to the PDF document or feel free to contact us.

• Other metal materials

The molten zinc-aluminum alloy coating "GALVA LEO" is a high corrosion-resistant coating that contains 5% aluminum and 1% magnesium based on molten zinc. It demonstrates excellent corrosion resistance in a wide range of fields, including salt damage, heavy industrial areas, civil engineering, construction, electricity, telecommunications, and railways. 【Features】 ■ Compliant with RoHS, JIS certified (JIS H 8643) ■ Proven performance of over 10,000 hours in salt spray tests (in accordance with JIS Z 2371) ■ Compatible with bolts, nuts, and washers ■ High adhesion, with adhesion to iron equivalent to that of molten zinc coatings *For more details, please refer to the PDF document or feel free to contact us.

• Other metal materials

"GALVA LEO" is a high corrosion-resistant molten zinc-aluminum alloy coating that contains 5% aluminum and 1% magnesium based on molten zinc. It demonstrates excellent corrosion resistance in a wide range of fields, including salt damage, heavy industrial areas, civil engineering, construction, power, telecommunications, and railways. 【Features】 ■ Complies with RoHS and is JIS certified (JIS H 8643) ■ Proven performance of over 10,000 hours in salt spray tests (in accordance with JIS Z 2371) ■ Compatible with bolts, nuts, and washers ■ High adhesion, with adhesion to iron equivalent to that of molten zinc coating *For more details, please refer to the PDF materials or feel free to contact us.

• Other metal materials

The "High-Latch Nut" achieves high strength through carburizing treatment and has a locking effect due to high reverse axial force. It can be used repeatedly and is an assembly product, making it extremely easy to use. 【Features】 ■ Reusable ■ Reliable assembly product ■ High strength achieved through carburizing treatment ■ Locking effect due to high reverse axial force *For more details, please refer to the PDF document or feel free to contact us.

• nut

"ActiveX" is a bolt, nut, and washer that realizes high anti-loosening functionality with a simple shape, based on the concept of "absorbing the force that loosens screws." The spring effect generated by the elastic deformation of the skirt section absorbs vibrations and shocks, demonstrating its anti-loosening effect. According to the NAS3350 standard, vibration tests were conducted using JQA's high-speed screw loosening testing machine, resulting in a finding that it does not loosen for 17 minutes. 【Features】 ■ The spring effect generated by the elastic deformation of the skirt section absorbs vibrations and shocks. ■ Special shape for full contact of the seating surface. ■ Excellent reusability, allowing for cost reduction. ■ Passed vibration tests under the NAS3350 standard for 30,000 cycles (17 minutes). *For more details, please refer to the PDF document or feel free to contact us.

• bolt

The "A2-70" is a stainless steel hex bolt that guarantees strength based on the JIS B 1054-1 standard, which has not been available in the conventional market for hex bolts. Using austenitic stainless steel with excellent corrosion resistance and by managing the manufacturing process, it guarantees a minimum tensile strength of 700 N/mm². 【Features】 ■ High rust resistance: Made with austenitic stainless steel that excels in rust prevention ■ High strength: Guarantees a tensile strength of 700 N/mm² ■ Strength classification is indicated on the bolt head ■ Available in various sizes ■ Product inspection results and material mill sheets are provided for each lot number *For more details, please refer to the PDF document or feel free to contact us.

• bolt

The micro fasteners (precision screws for precision equipment) we offer can be produced using a cold forging method, allowing for the cost-effective mass production of precision screws in sizes ranging from M0.6 to M2.6.

• bolt

The "wedge nut" boasts exceptional anti-loosening effectiveness and is a low-cost anti-loosening nut that anyone can easily tighten. By shaping the bottom of the screw groove into a "wedge shape," it distributes the load across the entire thread, demonstrating outstanding tightening effectiveness. The technology is encapsulated in an appropriate angle that guides the tip of the male thread to make even contact. 【Features】 ■ Simultaneously achieves anti-loosening effect and the workability of hex nuts ■ Exhibits a LOCK effect when tightened with the same torque as a hex nut ■ Achieves low cost by not increasing the manufacturing process *For more details, please refer to the PDF document or feel free to contact us.

• nut

Leveraging processing technology cultivated from camera parts and fully utilizing CNC automatic lathes (Peter Man type)! Precision machined parts from Sanwa-I challenging "new manufacturing." 【Features】 ○ Strengthening technology development in collaboration with partner factories skilled in micro screws and ultra-small parts. ○ Capable of precision machining such as M1.0 diameter screws and round turning with a diameter of φ0.4mm, including 0.5mm hole processing in SUS303. ○ Machinery and equipment: 13 CNC lathes (6 of which are multi-functional), ultrasonic cleaning machine. ● For other functions and details, please download the catalog.

• Other machine elements

Import screw products centered around screw-related factories in Taiwan and China. We conduct factory inspections and prioritize quality for direct imports. 【Features】 - Factory assessment for quality assurance - Conduct audits and obtain random samples - Enhanced acceptance inspections - Requirement for mill sheets and inspection records for all products - Random sampling inspections upon acceptance - Testing for material, hardness, strength, dimensions, etc. - Various import product track record For other functions and details, please download the catalog.

• nut

"Lapis" is a tamper-resistant screw that is perfect for security measures. Due to its bit structure that requires a one-way special tool for fastening, it cannot be removed after being fastened. It is effective in areas where you want to create a black box, such as license plates and window frames. 【Features】 ■ Prevents removal after screw fastening, enhancing security ■ Bit structure that requires a one-way special tool for fastening ■ Cannot be removed after fastening ■ Head shapes available are only truss head and flat head *For more details, please refer to the PDF document or feel free to contact us.

• nut

We handle "seal washers." This is a set product that incorporates a rubber packing into a metal-drawn bowl-shaped washer. The rubber packing is press-fitted onto the threaded part of the bolt, sealing the fluid at the side. The design minimizes rubber overflow even when tightened to the appropriate torque. We use SUS304, which is resistant to rust, as the standard material. 【Features】 ■ Suitable for preventing gas and liquid leakage ■ Passed pressure tests up to 200 atmospheres (20 MPa) ■ Demonstrates sufficient performance even when used directly on the surface of black steel and cast iron ■ Vibration damping and noise reduction effects ■ The metal and rubber packing do not resonate with vibrations *For more details, please refer to the PDF materials or feel free to contact us.

• nut