KOYAMA CO., LTD. Product Lineup

The Pro-7 seismic mat is a high-performance seismic fixation gel that prevents the tipping, falling, and movement of equipment and supplies during earthquakes. It can be easily installed by simply sticking it to the bottom surface of the target object, without the need for construction, tools, or anchor bolts. The ultra-adhesive, highly elastic urethane gel flexibly absorbs vibrations and shocks, accommodating severe shaking equivalent to the Hanshin-Awaji earthquake waveform and intensity 7 levels such as 1000Gal. It is widely applicable to manufacturing lines, semiconductors, precision equipment, servers, office automation equipment, analytical and medical devices, and exhibits. Due to its self-adhesive nature, it leaves no residue when removed, and even if it gets dirty, its adhesive strength can be restored by washing with water, making it economical for repeated use. It has high safety standards, being UL94 V-2 compliant, RoHS2 directive compliant, and having passed VOC (off-gassing) analysis tests, and all products are treated for antibacterial and mold prevention. It has obtained unified qualifications from all government ministries and boasts a wealth of delivery achievements.

• Rubber

This is an introduction to "Elielle Dodeka Sheet," sold by EBS Co., Ltd. (Elielle Business Support). It is a thick type of sheet that does not tear or become wrinkled even when wiping away sweat, allowing for a thorough wipe. It has a refreshing and cool feel, with a clean citrus scent as its characteristic. Available in a large size of 30cm x 30cm and an extra-long size, it can also be wrapped around the neck for cooling. Why not try using it in combination with a neck cooler or air-conditioned clothing? Be sure to give the Dodeka Sheet Long a try while wiping away sweat and cooling your body!

• Other cleaning tools

Support for cooling down workers in hot environments. This cooling box efficiently cools down overheated bodies and is designed for break areas. It can be used in a wide range of locations, including factories, construction sites, logistics warehouses, and outdoor events, regardless of whether they are indoors or outdoors. We will propose the optimal installation method tailored to the site environment. 【Eye Bolt Specification】 If there are frequent opportunities for movement, the eye bolt specification is recommended! Eye bolts are already installed on the main unit, allowing for immediate use in hanging operations. Model number: DHE-BOX-EB

• Other office supplies

Proposal for the Introduction of the Oral Care Robot "g.eN" The greatest asset supporting the growth and sustainability of a company is the healthy lives of its employees and their families. In recent years, it has been medically proven that oral care is directly linked to the maintenance of overall health, prevention, and improvement of quality of life (QOL). However, maintaining a proper daily tooth brushing routine is not easy. The oral care robot "g.eN," born from the robotics laboratory at Waseda University, addresses this challenge. Three Values Brought by "g.eN" Reliable care in just one minute: With just a push of a button, you can achieve fully automated care in one minute. Anyone can easily remove plaque, making it perfect for busy workplaces and mornings. Supporting the health of the entire family: From finishing touches on children's brushing to oral training for the elderly, it embodies a company's commitment to valuing its employees and their families. A symbol of "Health Management" and "CSR": Utilizing it in employee benefits enhances engagement and contributes to the brand value of being an advanced company that values human resources and their families. Why not incorporate this innovation into health management to protect the smiles of employees and their families with a new habit of just one minute a day?

• others

PVC (vinyl) protective caps. Can be used to prevent scratches, rust, dust, and injuries on bolts, nuts, and screws. Compliant with RoHS2 (10 substances). Designed to be difficult to fall off due to high dimensional accuracy. Available in a wide range of sizes. 【Lineup】 Compatible standards ■M6 ■M8 ■M10 ■M12 ■M16 ■M20 *For more details, please refer to the catalog or contact Koyama Co., Ltd.

• bolt
• nut

A new hexagon socket bolt boasting high strength of "14.9," surpassing the highest JIS strength classification of "12.9," has arrived!! It utilizes high-strength steel with excellent "delayed fracture characteristics," achieving a tensile strength of 1,400 N/mm² while maintaining over 9% elongation!! The adoption of MJ threads (aerospace metric threads) also improves fatigue resistance, and this "super strength" solves issues in maintenance!! Additionally, separately from the above, there is a Delta Protect Coat, an environmentally friendly, chrome-free (no hexavalent or trivalent chromium) non-electrolytic thin film zinc flake coating, which, when applied, enables fastening with ultra-high strength and high corrosion resistance! Please consider this in conjunction!

• fastener

This document is a product catalog for molded bellows and vacuum flexible hoses that comply with various standards. It features a wide range of products tailored to different applications, including NW-KF, VG-VF, pipe ends, and ICF. Detailed descriptions of each product's standard specifications, structure, and dimensional tables are provided with illustrations, so please take a moment to read through it. [Contents (partial)] ■ NW-KF Flexible Hose ■ VG-VF Flexible Hose ■ VG-VF Loose Flexible Hose ■ Pipe End Flexible Hose ■ Pipe End Metal Seal Flexible Hose ■ NW-KF Molded Bellows *For more details, please download the PDF or feel free to contact us.

• Other machine elements

The "ISO-BT IWVC-6000" is a molded bellows lineup ranging from a nominal diameter of BT-63 to BT-200. As a standard specification, it is a product that has passed a test for He gas leakage of 1.0×10^-9 Pa·m³/sec or less. The materials of the bellows and flanges, as well as the thickness of the bellows, can be changed, allowing you to choose according to your application. 【Features】 ■ The dimensions of the bellows can be changed. ■ Products with a fluorine-based resin coating on the inner surface are also available. *For more details, please download the PDF or feel free to contact us.

• Other machine elements

The "ISO-MF IWVC-5000" is a molded bellows available in sizes ranging from MF-63 to MF-200. It can be used in environments where the inside is under vacuum and the outside is at atmospheric pressure, meeting the stringent standard of a helium gas leak rate of 1.0×10^-9 Pa·m3/sec or lower. It supports changes in bellows material and flange material, and modifications to the spring constant and thickness of the bellows are also possible. 【Features】 ■ Dimensions of the bellows can be changed ■ Fluoropolymer coating products are also available for the inner surface *For more details, please download the PDF or feel free to contact us.

• Other machine elements

The "VG-VF IWVC-4000" is a molded bellows available in sizes ranging from 20A to 300A. In addition to the VG-VG and VF-VF types, flanges can also be manufactured in a rotating type (loose type). Furthermore, in addition to the standard type where the bellows is directly welded to the flange, we also offer a custom type where the bellows is directly welded to the inside of the flange, allowing for selection based on various customer applications. 【Features】 ■ VG-VG and VF-VF types can also be manufactured ■ Sizes of 350A and above can also be produced ■ Rotating type (loose type) flanges can also be manufactured ■ Products with fluoropolymer resin coating on the inner surface are also available *For more details, please download the PDF or feel free to contact us.

• Other machine elements

The "ICF IWVC-3000" is a molded bellows that offers a lineup from nominal diameter ICF34 to ICF253. The standard type features a fixed flange, but depending on the application, it can be modified to have tapped bolt holes or can be manufactured as a rotating type. Additionally, there is a custom type available where the bellows is directly welded to the inside of the flange, allowing for selection based on various customer applications. 【Features】 ■ Standard type has a fixed flange ■ Bolt holes can be changed to tapped holes ■ Rotating type can also be manufactured ■ Custom type has different bellows dimensions ■ Products with a fluoropolymer coating on the inner surface are also available *For more details, please download the PDF or feel free to contact us.

• Other machine elements

The "Pipe End IWVC-2000" is a molded bellows available in sizes ranging from 3/4B to 4B. It can be used in environments where the inside is under vacuum and the outside is atmospheric pressure, and it meets the stringent standard of a He gas leak rate of 1.0×10^-9 Pa·m3/sec or lower. In addition to accommodating changes in bellows material and pipe material, we also inquire about the spring constant and thickness of the bellows. 【Features】 ■ Custom manufacturing is possible for sizes below 1/2B ■ Custom manufacturing is possible for sizes above 5B ■ Changes to the outer diameter and thickness of the pipe are also possible ■ Products with an inner fluoropolymer coating are also available *For more details, please download the PDF or feel free to contact us.

• Other machine elements

The "NW-KF IWVC-1000" is a molded bellows available in sizes from NW-16 to NW-100. As a standard specification, it is a product that has passed a test for He gas leakage of 1.0×10^-9 Pa·m³/sec or less. The materials for the bellows and flanges, as well as the thickness of the bellows, can be changed, allowing you to choose according to your application. 【Features】 ■ NW-10 size can also be manufactured ■ Sizes of NW-125 and above can also be manufactured ■ Products with an inner fluoropolymer coating are also available *For more details, please download the PDF or feel free to contact us.

• Other machine elements

The "VG-VF Loose IWVF-4000" is a flexible hose available in sizes ranging from 20A to 300A. The standard specification features a loose type flange on the VF side and a fixed type flange on the VG side. It is also possible to manufacture both sides as loose type or both sides with VF flanges. Additionally, VG flanges can be produced. 【Features】 ■ Bladed versions can also be manufactured ■ Flexibility varies depending on the type of tube ■ Products with a fluoropolymer coating on the inner surface are also available *For more details, please download the PDF or feel free to contact us.

• hose
• hose

The "VG-VF IWVF3000" is a flexible hose available in sizes ranging from 20A to 300A. The standard specification features fixed flanges on both ends. It is also possible to manufacture VF flanges or VG flanges on both sides. We can accommodate changes in the materials of the bellows and flanges, allowing us to provide specifications tailored to your needs. 【Features】 ■ Blades can also be manufactured ■ Flexibility varies depending on the type of tube ■ Products with a fluorine resin coating on the inner surface are also available *For more details, please download the PDF or feel free to contact us.

• hose
• Tubes and hoses

The "Pipe End IWFV-2000" is a flexible hose lineup available in nominal diameters from 1/4B to 1/2B. It is a product that has passed a stringent leak test with a He gas leak rate of 1.0×10^-9 Pa·m³/sec or lower. It can flexibly accommodate changes in the materials of bellows and flanges, allowing for specifications tailored to your application. 【Features】 ■ Blades can also be manufactured ■ Nominal diameters of 3/4B and above can also be produced ■ Products with a fluorine-based resin coating on the inner surface are also available *For more details, please download the PDF or feel free to contact us.

• hose
• hose

The "NW-KF IWFV-1000" is a flexible hose available in nominal diameters ranging from NW-16 to NW-100. It boasts high quality, having passed a leak test with a standard of He gas leak rate below 1.0×10^-9 Pa·m³/sec. Changes in bellows material and flange material are also possible, allowing us to meet various customer needs. 【Features】 ■ Blades can also be manufactured ■ Nominal diameter NW-10 can also be produced ■ Nominal diameters of NW-125 and above can also be manufactured ■ Products with fluoropolymer coating on the inner surface are also available *For more details, please download the PDF or feel free to contact us.

• hose

"Pro Wipe" is a general term for disposable paper wipers for commercial and industrial use developed by Daio Paper (under the Elleair brand). We offer a variety of product lineups based on quantity, size, and purpose! You can try our classic soft micro wiper for free. Please feel free to ask. ↓ Here is the Pro Wipe electronic catalog https://www.ep-bs.co.jp/img/ebs_gyoumuyou_2025_10/#page=1 ↓ Here is the Elleair product electronic general catalog https://www.ep-bs.co.jp/img/ebs_gyoumuyou_2025_10/#page=1

• Wes

In the manufacturing industry, temperature management in the work environment significantly affects product quality maintenance. In particular, working in high temperatures can lead to decreased concentration and health issues, increasing the risk of defective products. Therefore, it is important to maintain worker comfort and ensure stable quality. Our W Cooling Fan contributes to quality maintenance by suppressing temperature rise in the work environment through a combination of fan airflow and double cooling plates. 【Usage Scenarios】 - Work in factories with high temperatures - Precision tasks that require quality control - Long hours of outdoor work 【Benefits of Implementation】 - Reduction in perceived temperature for workers - Improved quality due to maintained concentration - Decreased risk of heat-related illnesses

• others

In the construction industry, work is often required in harsh environments, such as long hours outdoors or near heat sources. In such situations, workers' body temperatures can rise significantly, increasing the risk of heatstroke. There are growing concerns that general cooling vests may provide airflow but not sufficient cooling. Therefore, the W cooling fan equipped with a cooling plate enhances worker comfort and strengthens heatstroke prevention through a dual cooling effect of airflow and the cooling plate. 【Usage Scenarios】 - High-altitude work outdoors - Work near heat sources - Long hours of heavy machinery operation - Material transportation during summer 【Benefits of Implementation】 - Suppression of workers' body temperature rise - Reduction of heatstroke risk - Improved work efficiency through sustained concentration - Fatigue reduction

• others

【Fan-assisted airflow + Peltier cooling plate】 Due to the recent extreme heat, there has been an increase in feedback that "the air comes in, but it's not cool" with typical cooling clothing. Therefore, we have developed a dual cooling fan equipped with a cooling plate. 【Double cooling sensation from fan airflow and cooling plate】 STEP 1: The air blown from the fan evaporates sweat, lowering body temperature through evaporative cooling. STEP 2: The cooling plate lowers the temperature of the air circulating inside the clothing, enhancing the cooling effect. STEP 3: The cooling plate directly contacts the body, allowing you to feel the coolness instantly.

• others

It is suitable for harsh usage conditions such as precision machinery, marine and chemical fields, and ultra-low temperature environments. Its specific gravity is 4.51, achieving about 60% of the weight of iron. In addition to preventing magnetic interference due to its complete non-magnetic properties, it exhibits excellent corrosion resistance that surpasses stainless steel due to its strong oxidized surface, making it resistant to seawater and chemicals. 【Convenience of Procurement】 During the prototype and verification stages, arrangements can be made immediately from just one piece. When transitioning to mass production, we utilize our unique procurement routes as a specialty screw trading company to efficiently source equivalent products that meet design specifications. We aim to optimize costs and delivery times.

• bolt
• Screw

We have achieved "cooling the entire body" which was not possible with previous heat countermeasure products. When you sit inside the box, a breeze blows from the back, and cool air hits your neck just right. The cool air is about 5°C, providing a refreshing sensation similar to that of a refrigerator's chilled compartment. Compared to conventional localized cooling methods, it effectively cools the body. Additionally, it automatically stops after 20 minutes to prevent excessive cooling. There is no need for installation work, so it can be used immediately, and it is suitable for both indoor and outdoor settings. The electricity cost is approximately 16 yen per hour! Its energy-saving performance is about half that of a spot air conditioner. We have demo units available. Please feel free to contact the Development Sales Department of Koyama Co., Ltd. at ☎03-3363-3711.

• Other office supplies

In warehouses and logistics sites, the safety management of workers is becoming increasingly important. In particular, warehouses tend to become high-temperature environments during the summer, leading to significant issues such as heat-related illnesses, decreased work efficiency, and increased accident risks. There are not a few cases where thinking "I'm still okay" can lead to major troubles. "Canary Plus" is a wearable device that estimates changes in core body temperature and alerts users to the risk of heat-related illnesses. It notifies dangers through sound, supporting heat illness prevention measures that do not rely solely on the workers' own awareness.

• Other measurement, recording and measuring instruments

In the delivery industry, tasks such as loading and unloading packages in the scorching sun and long-distance driving are essential in environments with a high risk of heatstroke. Managing the health of workers is crucial for maintaining operational efficiency and ensuring a safe working environment. Heatstroke can lead to decreased performance among workers and potentially serious accidents. "Canary Plus" supports the health management of workers by estimating changes in core body temperature and notifying them of heatstroke risks through alerts. 【Usage Scenarios】 - Loading and unloading tasks in the scorching sun - Long-distance truck driving - Outdoor delivery operations 【Benefits of Implementation】 - Reduction in the number of workers suffering from heat-related illnesses - Increased safety awareness among workers - Stabilization of working hours

• Other measurement, recording and measuring instruments

In the security industry, there is a high risk of heatstroke due to long hours of outdoor work and operations in high-temperature environments during the summer. Particularly in patrol and monitoring tasks, it can be difficult to notice changes in physical condition, which may lead to worsening situations. Accidents caused by heatstroke can result in delays in operations and staff shortages, potentially damaging the company's reputation. "Canary Plus" supports the health management of security personnel by estimating changes in core body temperature and notifying them of heatstroke risks through alerts. 【Usage Scenarios】 - Outdoor patrol duties - Summer event security - Long-duration monitoring tasks 【Benefits of Implementation】 - Prevention of accidents due to heatstroke - Strengthening of workers' health management - Maintenance of operational efficiency

• Other measurement, recording and measuring instruments

In the construction industry, there is a lot of outdoor work, creating an environment with a high risk of heatstroke. To maintain a safe working environment, it is important to manage the health of workers. In particular, in recent years, there has been a trend of prolonged extreme heat and revisions to labor safety and health regulations, leading to a demand for companies to strengthen their heatstroke countermeasures. "Canary Plus" is a wristwatch-type wearable device that detects the risk of heatstroke based on changes in core body temperature. An alarm sounds when the core body temperature approaches 38°C, notifying of the risk of heatstroke. 【Usage Scenarios】 - Managing heatstroke risk during work at construction sites - Compliance with mandatory heatstroke countermeasures - Strengthening safety measures on-site 【Benefits of Implementation】 - Reducing the risk of accidents due to heatstroke - Improving health management and safety for workers - Strengthening safety measures as a company

• Other measurement, recording and measuring instruments

Summer factories, construction sites, and logistics sites. "I thought it would be fine for now." This complacency is leading to an increase in serious accidents and withdrawals. In recent years, especially with the prolonged heat waves and the trend of revising labor safety and health regulations, companies are being urged to strengthen their measures against heatstroke. "Canary Plus" is a wristwatch-type wearable device that detects heatstroke risk based on changes in deep body temperature. An alarm sounds when the deep body temperature approaches 38°C, notifying you of the risk of heatstroke. Additionally, - No charging required (single-season use) - IP67 dustproof and waterproof - Lightweight design at approximately 30g - Easy-to-wear wristwatch type are features that make it user-friendly for on-site use. Demonstration tests have also been conducted with the Tokyo Fire Department, confirming the effectiveness of the algorithm in high-stress environments.

• Other measurement, recording and measuring instruments

The scorching heat comes every year. But are you just using the same heat measures on-site as last year? In factories, warehouses, and outdoor work, heat can significantly affect work efficiency and safety due to physical exhaustion and decreased concentration. What seems like "still okay" can lead to major troubles. At Koyama Co., Ltd., as a primary distributor for Trusco Nakayama, we propose the best products tailored to your work environment and needs from a wide range of heatstroke prevention items. "I want to cool down immediately." "I want to implement heat measures without stopping work." "I want to prepare early this year." We can broadly accommodate your concerns with cooling products, work continuity supplies, and preventive measures. Before the intense heat arrives, why not review this year's heatstroke prevention strategies?

• Other safety and hygiene products

With the "ikitbot" equipped with a multi-cleaning mode, you can easily perform sweeping, vacuuming, mop washing, dry wiping and suction, self-cleaning, and even disinfection* with just one touch. In addition to its diverse cleaning modes, its industry-leading quietness and extremely easy maintenance are also appealing. It has received high praise from a wide range of customers. Our group company, Tokai Rock, which specializes in screw processing, has just introduced it recently. It is an environment where black dirt such as dust and carbon soot tends to accumulate. On the first day of operation, the brush became completely black, demonstrating its cleaning effectiveness. With daily cleaning, the floors reportedly became increasingly shiny. According to the factory manager, "Mop washing is usually difficult to do easily. However, with ikitbot, it works every day with just one touch, and it cleans without any issues even in the pitch-dark factory after hours, so when I come in the next morning, the factory is neat and tidy." There are no maintenance inspections or software usage fees, so there are no monthly charges. Demo units are available for use. If you are interested, please feel free to contact Koyama Co., Ltd. Development Sales Department. *Disinfection is an optional feature.

• Industrial Vacuum Cleaners
• Vacuum cleaner

In the industrial machinery sector, long-term stable operation is required. In particular, for electronic components used in harsh environments such as temperature changes, vibrations, shocks, and noise, high durability and reliability are essential. If a malfunction occurs, it can lead to production line stoppages and increased repair costs. MIL-standard electronic components address these challenges and contribute to the longevity of industrial machinery. 【Components Handled】 - Capacitors - Connectors - Resistors - Cables 【Usage Scenarios】 - Industrial machinery used outdoors - Machinery used in environments with high vibrations and shocks - Machinery that requires 24-hour operation 【Benefits of Implementation】 - Reduced risk of failure - Lower maintenance costs - Improved machine operating rates

• Capacitor
• Resistors
• Circular Connectors

In the defense industry, the reliability and durability of products are the top priorities. In particular, electronic components that can withstand harsh environments such as temperature changes, vibrations, shocks, and noise are required. Malfunctions can lead to system failures or serious accidents. MIL-spec electronic components comply with the U.S. Department of Defense's reliability standards "MIL specifications" and have passed rigorous environmental testing. They achieve the durability required for aerospace, defense, and industrial equipment. 【Components Offered】 - Capacitors - Connectors - Resistors - Cables 【Application Scenarios】 - Military communication equipment - Aircraft onboard systems - Defense-related control systems 【Benefits of Implementation】 - Ensured high reliability - Long-term stable operation of products - Reduced risk of cost increases due to malfunctions

• Capacitor
• Resistors
• Circular Connectors

In the aerospace industry, product reliability is of utmost importance. In particular, because high safety and long-term operation are required, the quality of electronic components is extremely important. Electronic components that comply with MIL standards maintain high performance even under harsh conditions such as temperature changes, vibrations, shocks, and noise, contributing to the stable operation of aerospace equipment. MIL-compliant electronic components achieve the durability required for aerospace, defense, and industrial equipment. 【Components Handled】 - Capacitors - Connectors - Resistors - Cables 【Application Scenarios】 - Aircraft - Space probes - Defense systems - Industrial robots 【Benefits of Implementation】 - Improved equipment reliability - Long-term operational cost reduction - Ensured safety

• Capacitor
• Resistors
• Circular Connectors

The "Metal Q Series" is a cut-resistant glove made from the high-strength polyethylene "METAL Q," developed independently by Hanbo Corporation. By incorporating carbon-based materials within the fibers, it achieves high cut resistance without the need to combine glass or metal fibers. Additionally, it has been designed to be thin, lightweight, strong, and soft. Features: - Soft texture - Balances safety and comfort - Low dust generation, cool wearing sensation - Washable and reusable

• Work gloves

We would like to introduce the "round washers" that we handle. We offer a wide range of products including ISO, ISO small size, JIS, JIS small size, brass round washers, standard round washers, and standard round washers made of iron. When the counterpart material is wood, using larger diameter round washers for wood can prevent sinking. 【Product lineup (partial)】 ■ Round washer ISO ■ Round washer ISO small size ■ Round washer JIS ■ Round washer JIS small size ■ Brass round washer standard *For more details, please feel free to contact us.

• Other machine elements

We would like to introduce our "Hex Socket Set Screws (Hollow Set) <Rod End>." The materials include iron in finishes such as raw, zinc-plated, chromated, and nickel, as well as stainless steel. We offer screw sizes ranging from M1.6 to M20. Please feel free to contact us if you have any requests. 【Screw Sizes (Partial)】 ■M1.6 ■M2 ■M2.5 (2.6) ■M3 ■M4 ■M5 *For more details, please feel free to contact us.

• bolt
• Screw

We would like to introduce our "Hex Socket Set Screw (With Pointed End)." We offer materials such as iron, stainless steel, and SUS316L. The screw sizes range from M1.6 to M16. Please feel free to contact us if you have any requests. 【Screw Sizes (Partial)】 ■M1.6 ■M2 ■M2.5 (2.6) ■M3 ■M4 *For more details, please feel free to contact us.

• bolt
• Screw

We would like to introduce our "Hexagon Socket Set Screw (Hollow Set) <Flat Tip>." We offer screw sizes ranging from M1.6 to M24. The materials available include iron, stainless steel, and SUS316L. Please feel free to contact us if you have any requests. 【Screw Sizes (Partial)】 ■M1.6 ■M2 ■M2.5 (2.6) ■M3 ■M4 *For more details, please feel free to contact us.

• bolt
• Screw

We would like to introduce our "Hexagon Socket Set Screw (Hollow End)." The materials available include iron, stainless steel, SUS316L, and titanium. We offer screw sizes ranging from M1.2 to M24. Please feel free to contact us if you have any requests. 【Screw Sizes (Partial)】 ■M1.2 ■M1.6 (1.7) ■M2 ■M2.5 (2.6) ■M3 *For more details, please feel free to contact us.

• bolt
• Screw

We would like to introduce the "Hex Socket Bolts" that we handle. The screw sizes range from M1.4 to M42. The materials available include iron, stainless steel, SUS316L, SUS310S, SUS430, aluminum, titanium, and 64 titanium. Please feel free to contact us if you have any requests. 【Screw Sizes (Partial)】 ■M1.4 ■M1.6 ■M2.5 (M2.6) ■M3 ■M4 *For more details, please feel free to contact us.

• bolt

We would like to introduce the "Hex Bolts (Partially Threaded)" that we handle. The materials available are iron, SNB7, brass, stainless steel, SUS316, SUS316L, SUS310S, aluminum, and titanium. We offer a range of thread sizes from M3 to M80. Please feel free to contact us if you have any requests. 【Thread Sizes (Partial)】 ■M3 ■M4 ■M5 ■M6 ■M8 *For more details, please feel free to contact us.

• bolt

We would like to introduce the "hex bolts" that we handle. We offer thread sizes from M3 to M42. The materials available include iron, SNB7, brass, stainless steel, SUS316, SUS310S, and aluminum. Please feel free to contact us if you have any requests. 【Thread sizes (partial)】 ■M3 ■M4 ■M5 ■M6 ■M8 *For more details, please feel free to contact us.

• bolt

High-performance air coupler made by TST! With a straight flow path design that minimizes pressure loss, it is ideal for air leakage prevention with a safe and long-lasting design! ● Main Features of TST Swing Coupling ● - 40% Increased Flow Rate: Achieves high flow rates through a unique structure, improving efficiency. - Energy-saving Design: Reduces pressure loss and allows for lower initial pressure settings (25% reduction). - Safety: Auto-lock mechanism ensures safety and automatically releases residual pressure to reduce recoil and noise. - High Quality: Excellent longevity and durability, effective for air leakage prevention in factories. (Proven use for over 15 years in a major factory) *For more details, please refer to the catalog. For inquiries, please contact Koyama Co., Ltd.

• hose

By adopting Quostics, work efficiency increases, leading to improved productivity. 【Usage Scenarios and Effects of Implementation】 - Reduces the risk of accidents due to cam-out - Applicable to tapping screws under torque - Streamlines assembly work - Achieves space-saving by enabling low-profile screws.

• bolt

【Effects of Introduction】 - Reduced risk of component damage due to cam-out - Improved work efficiency - Difficult to cam-out even with a low head, contributing to space-saving of components 【Usage Scenarios】 - Assembly of small electronic devices - Screw tightening work for precision instruments - Circuit board mounting

• bolt