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Waterproof Screw Product List

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Achieving high axial force and waterproof performance! O-ring embedded screw Asfa(R) WP

【New Product】Can be used without zaguri processing, demonstrating stable waterproofing even with positional shifts! Excellent slip during transportation, suitable for automation! 【Exhibition Participation!】

The "Asufa(R) WP" is a waterproof screw that achieves high axial force, waterproofing, and workability by incorporating an O-ring and flat washer beneath the neck. It can be used without countersinking, and has a wide tolerance range for the screwing position, contributing to improved efficiency and stability in fastening operations. Additionally, the structure makes it difficult for the O-ring to touch the ground surface before fastening, allowing for smooth transportation on a shoot rail. 【Features】 ■ Waterproof performance confirmed for 30 minutes in a submersion test at a water depth of 30 cm ■ Large contact surface that is less likely to sink even when tightened with high axial force ■ No need for countersinking on the fastened item, reducing total costs ■ Resolves supply issues in the assembly process and contributes to automation We will be exhibiting at the "2024 NAGOYA Automotive Technology Exhibition" held at Aichi Sky Expo (Aichi Prefectural International Exhibition Center) from July 17 to 19. Please come and see the actual product at the exhibition venue. *For more details, please refer to the catalog available for PDF download. Feel free to contact us with any inquiries.

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  • Waterproof Screw

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[Data] Shirutoku Report No. 22 # The Importance of Screws in Waterproof Design

Introducing common questions regarding screw structures in waterproof design and points to consider during their examination!

★★Shirutoku Report: Useful Information You Should Know★★ When designing for waterproofing, many people tend to focus solely on the gasket parts of the housing. In fact, the screw areas require even more attention than the main waterproof sections. This report discusses the screw structures in waterproof design and points to consider during their examination, addressing frequently asked questions. Please take a moment to read it. 【Contents】 ■ Services we have received inquiries about ■ Frequently asked questions - What specifications should be applied for waterproof screws? - What is the most important point to be cautious about when using waterproof screws? *For more details, please refer to the PDF document or feel free to contact us.

  • Waterproofing work
  • Facility Design
  • Waterproof Screw

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Aspha(R) WP O-ring + flat washer New waterproof screw

The waterproof screw "Asfa(R) WP" combines stable waterproofing with high axial force due to sinkage reduction.

"Asufa(R) WP" is a newly conceived waterproof screw that incorporates a flat washer in addition to an O-ring located beneath the neck. Since the O-ring can be positioned on the outer circumference of the screw head, it maintains stable waterproof performance even if the fastening element shifts. Additionally, it secures sufficient contact surface, allowing for fastening with higher axial force without causing the fastening element to sink. Furthermore, in the automatic screw tightening process, the flat washer (metal) makes contact with the chute rail of the screw supply machine, enabling smooth transportation. [Features of Asufa(R) WP] ■ Provides stable waterproof performance with minimal impact from the shifting of fastening elements. ■ Allows for fastening with higher axial force by reducing the sinking of fastening elements. ■ Achieves smooth transportation by having the flat washer contact the chute rail in the automatic screw tightening process. *For more details, please refer to the PDF document or feel free to contact us.

  • Safety and consumables
  • Waterproof Screw

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