In January 2017, our Zinc Hut was selected for the "Kansai Manufacturing Selection 2017" by the Kinki Bureau of Economy, Trade and Industry!

A safety revolution with the power of ions that repels rust! Reducing maintenance costs and improving seismic performance!

"Zinc Hat" is a corrosion protection cap devised by applying the electrochemical corrosion prevention effect of high-purity zinc. It can be easily and securely attached to anchor bolts and bolt nuts that support buildings and structures using a wrench or similar tool, preventing the occurrence of rust on metals through the power of ions. Additionally, it comes in a wide variety of colors to suit different applications. This fully corrosion-resistant rust prevention cap is patented and contains no harmful substances, taking the earth's environment into consideration. 【Features】 ■ Permanently and reliably prevents metal rust in various environments ■ Environmentally friendly ■ Reduces maintenance costs ■ Improves seismic performance ■ Prevents the occurrence of rust on metals through the power of ions *For more details, please refer to the PDF document or feel free to contact us.

• nut
• bolt

Powerful rust prevention effect! Repels rust and revolutionizes safety with the power of ions!

The Zinc Hat is a full corrosion protection cap designed by applying the excellent protective function of high-purity zinc. The fastening parts of anchor bolts and bolt nuts can develop rust and corrode due to moisture and acidic rain adhering to them. Corroded fastening parts naturally experience a decrease in strength, and when external forces such as earthquakes, typhoons, or strong winds are applied, buildings and structures are exposed to the risk of collapse. Additionally, stainless steel can also suffer from stress corrosion, crevice corrosion, and erosion depending on the processing method and usage environment (such as salt damage areas). Current rust prevention methods have not been able to provide sufficient rust prevention effects. In particular, the occurrence of rust on anchor screw parts has been a significant issue. Currently, the safety of public buildings and various structures is a concern. By installing the "Zinc Hat" on fastening parts, it effectively blocks the occurrence of rust on bolt nuts through the effects of electrochemical corrosion (sacrificial corrosion action), coating corrosion protection, and inhibitor effects, while also maintaining excellent corrosion protection functionality over the long term and preserving seismic performance. For more details, please contact us or refer to the catalog.

• Rust Inhibitor
• others

Full corrosion protection with the power of ions! Our patented technology will revolutionize public buildings around the world!

Currently, the corrosion of bolts and nuts in public buildings is a significant issue. This document features "Zinc Hats," which support the safety and security of fastening components used in various industrial societies. We provide detailed information, accompanied by photos and diagrams, on topics such as "test results in outdoor exposure," "immersion tests with tap water," and "comparison tests with resin caps." We invite you to read it. 【Contents (excerpt)】 ■ Schematic diagram ■ Cathodic protection method ■ Test results in outdoor exposure ■ Salt spray test report ■ Locations where Zinc Hats are currently being introduced *For more details, please refer to the PDF document or feel free to contact us.

• nut
• bolt

Rich color variations! A corrosion-resistant protective cap zinc hat that overturns the monochrome image.

"Zinc Hat" is a corrosion protection cap that uniquely blocks the occurrence of rust on exposed bolts and demonstrates excellent corrosion resistance over a long period of time. The image of a rust prevention cap being a monotone single color is overturned by Zinc Hat. We have increased the color variations to accommodate various scenes. We offer a rich array of colors to ensure that aesthetics and design are not compromised. For more details, please refer to the catalog or feel free to contact us.

• nut
• bolt

Block the occurrence of bolt rust! Excellent performance, anti-corrosion protective cap Zinc Hat.

"Zinc Hat" is a corrosion protection cap that has been researched and developed with original alloys, continuously improved, and equipped with electric corrosion protection, coating corrosion protection, and inhibitor effects. The method of installation, which involves placing the cap over the bolt, is the same as traditional rust prevention methods, but there is a significant difference in performance, providing excellent corrosion resistance over the long term. Since it can be installed simply with a wrench or spanner, there is no need to fill with grease or caulking materials, resulting in a much lower maintenance cost compared to conventional methods. 【Features】 - Sacrificial corrosion protection (electrolytic corrosion) - Coating corrosion protection - Inhibitor effect For more details, please refer to the catalog or feel free to contact us.

• nut
• bolt

We would like to introduce our delivery achievements of Zinc Huts to NEXCO East Japan.

The "Zinc Hat" is a corrosion protection cap that blocks the occurrence of rust on bolts and nuts through the power of ions, utilizing electric corrosion protection effects, coating corrosion protection effects, and inhibitor effects. Here are some examples of its adoption by NEXCO East Japan. 【Delivery Record】 ■ Zinc Hat ZHZ Type 　・ Project Name: Sound Barrier Construction in the Kuki-Satte Area of the Metropolitan Central Loop Expressway For more details, please refer to the catalog or feel free to contact us.

• nut
• bolt

Revolution in safety with the power of ions! Corrosion protection cap that exhibits anti-corrosion functionality over a long period.

The "Zinc Hat Series" is a corrosion protection cap devised by applying the excellent protective function of high-purity zinc. It effectively blocks the occurrence of rust on bolts and nuts through electrical corrosion effects (sacrificial corrosion action), coating corrosion effects, and inhibitor effects, demonstrating outstanding corrosion protection over the long term while also maintaining seismic performance. 【Features】 ■ Rich color variations enhance aesthetics and design appeal ■ Easy installation by simply tightening with a wrench or spanner ■ Effective in all environments and locations, including marine, land, and soil ■ Environmentally friendly and free of harmful substances ■ Usable on metals such as stainless steel For more details, please refer to the catalog or feel free to contact us.

• nut
• bolt

Revolution in safety with the power of ions! Corrosion protection cap that blocks the formation of rust on bolts.

We introduce the patented technology and corrosion test results of "Zinc Hat" from A&S System, which supports the safety and security of fastening parts used in various industrial societies. "Zinc Hat" is a corrosion protection cap that features electrical corrosion prevention, coating corrosion prevention, and inhibitor effects, demonstrating excellent corrosion protection functionality over the long term. It can be installed simply with a wrench or spanner, eliminating the need to fill with grease or sealant, thereby reducing maintenance costs compared to conventional methods. 【Main Contents】 ■ Patented technology held by A&S System ■ Test results from outdoor exposure ■ Immersion tests using tap water ■ Comparative confirmation tests with resin caps ■ Salt spray test report, etc. For more details, please refer to the catalog or feel free to contact us.

• nut
• bolt

Prevents rust! Blocks the occurrence of rust on bolts and nuts with the power of ions.

"Zinc Hat" is a rust prevention cap that exhibits excellent corrosion protection functions over a long period. It is easy to install; simply cover the bolt and nut and tighten with a wrench or similar tool. It blocks the occurrence of rust on bolts and nuts through the power of ions from electrical corrosion protection effects, coating corrosion protection effects, and inhibitor effects. Our company is focused on the manufacturing and sales of the corrosion protection cap "Zinc Hat" and the post-installed anchor for concrete "AS Plug Bolt." 【Features】 ■ Easy installation by simply covering the bolt and nut and tightening with a wrench or similar tool ■ Electrical corrosion protection effect ■ Coating corrosion protection effect ■ Inhibitor effect ■ Excellent corrosion protection functions over a long period *For more details, please refer to the PDF materials or feel free to contact us.

• nut
• bolt

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact to the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

We are currently running the VariCAD Start Support Campaign, where you can purchase VariCAD at a special price! During the campaign period, new licenses are available at 20% off the regular price. Additionally, during the SALE period, we are distributing discount coupons (note: there is a validity period for use) that can be used after the SALE ends. Customers who wish to experience VariCAD before making a purchase can obtain this coupon during the SALE period and use it later after their trial. The initial setup cost is priced at around 100,000 yen (including one year of maintenance support and upgrades) due to this discount campaign, and the annual maintenance support running cost from the second year onwards is around 50,000 yen (with conditions for purchase in the renewal month), making the total cost lower compared to other products. Why not take advantage of this campaign and start using 3D CAD at a great price? ◆ VariCAD Start Support Campaign Special Site https://varicad.add-soft.jp/support/?page_id=17614

We are currently running the VariCAD Start Support Campaign, where you can purchase VariCAD at a special price! During the campaign period, new licenses are available at 20% off the regular price. Additionally, during the SALE period, we are distributing discount coupons (note: there is a validity period for use) that can be used after the SALE ends. Customers who wish to experience VariCAD before making a purchase can obtain this coupon during the SALE period and use it later after their trial. The initial setup cost is around 100,000 yen (including one year of maintenance support and upgrades) at the discounted campaign price, and the annual maintenance support running cost from the second year onwards is around 50,000 yen (with conditions for purchase in the renewal month), making the total cost lower compared to other products. Why not take advantage of this campaign and start using 3D CAD at a great price? ◆ VariCAD Start Support Campaign Special Site https://varicad.add-soft.jp/support/?page_id=17614

Thank you very much for your continued support. We regret to inform you that our company will be closed for the following period for the Golden Week holiday. <Golden Week Holiday Period> From Saturday, April 25, 2026, to Tuesday, May 5, 2026 During this period, we will be closed for business. If you have any inquiries, please use email or the contact form on our website to reach the person in charge. We will respond to your inquiries sequentially after Tuesday, May 6. We apologize for any inconvenience this may cause and appreciate your understanding. [Limited Company Iida Manufacturing, Fukushima No. 2 Factory] 〒969-1204 21-2 Mizukami, Nukazawa, Motomiya City, Fukushima Prefecture TEL: 0243-64-2320 FAX: 0243-64-2571

● This is a leak testing device for small electronic components that does not use fluorinated inert liquids (PFAS-free). ● There is no longer a need for unstable visual confirmation through liquid immersion testing. It adopts a quantitative testing method that allows for stable pressure leak testing. ● It is a tabletop leak testing device specifically for gross leaks, with accuracy equal to or greater than that of liquid immersion testing. ● The detectable range is approximately 1×10⁻² Pa·m³/s to 1×10⁻⁶ Pa·m³/s (varies depending on the target product). ● It is suitable for sealed structures ranging from a few millimeters to a maximum of 80 × 70 mm. Please feel free to contact us for more information!