S-93490A011 0.2" ID x 0.438" OD General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from silicon bronze material, ideal for harsh environments and marine applications
• Precise dimensional fit with 0.2" ID and 0.438" OD ensures perfect alignment with No. 10 screws
• Consistent load distribution across 0.029-0.043" thickness range prevents surface damage and fastener loosening
• Environmental compliance assurance with RoHS 3 and REACH compliance for safe industrial use
• Excellent durability maintains structural integrity under vibration and thermal cycling conditions
• Broad compatibility with inch-system fasteners across multiple industrial sectors

Professional Applications & Engineering Value

Engineered for demanding environments where corrosion resistance is critical, these silicon bronze flat washers provide long-term reliability in marine hardware, chemical processing equipment, and coastal infrastructure. The inch-system dimensions (0.438" OD, 0.2" ID) ensure precise compatibility with No. 10 screws, while the controlled thickness range (0.029-0.043") maintains consistent clamping force distribution. This prevents galvanic corrosion when paired with compatible fasteners and protects sensitive surfaces from damage. The silicon bronze construction offers exceptional resistance to saltwater corrosion and stress cracking, making these flat washers ideal for applications requiring maintenance-free longevity in corrosive atmospheres.

Specification Summary & Compliance

This flat washer features inch-system dimensions with 0.2" inner diameter, 0.438" outer diameter, and thickness ranging 0.029-0.043" for No. 10 screw applications. Manufactured from silicon bronze for optimal corrosion resistance, the product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial suitability. The washers provide reliable performance across various industrial applications requiring compliant hardware solutions.