S-91525A365 0.531" ID x 1.25" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 stainless steel material, ideal for harsh industrial and marine environments
• Precise dimensional fit with 0.531" ID ensuring secure seating on 1/2" screws without slippage
• Optimal load distribution through 1.25" OD design, protecting surfaces from damage under pressure
• Consistent performance maintained across 0.170-0.200" thickness range for reliable spacing and tension
• Regulatory compliance with RoHS 3 and REACH standards, meeting strict environmental and safety requirements
• Durable construction using inch-system specifications for seamless integration with existing equipment
• Long-term reliability in demanding applications where corrosion resistance is critical

Professional Applications & Engineering Value

These 316 stainless steel flat washers deliver exceptional value in corrosive environments where standard fasteners fail. The marine-grade composition provides outstanding resistance to saltwater, chemicals, and extreme temperatures, solving common corrosion-related failure points in industrial equipment, offshore platforms, and chemical processing facilities. The precise 0.531" inner diameter ensures perfect alignment with 1/2" screw sizes, eliminating installation issues while the 1.25" outer diameter maximizes surface coverage to prevent embedment and distribute clamping forces effectively. This combination of inch-system dimensions and premium material makes these flat washers ideal for maintenance, manufacturing, and infrastructure projects requiring durable, corrosion-resistant fastening solutions.

Specification Summary & Compliance

This flat washer features inch-system dimensions with 0.531" ID, 1.25" OD, and 0.170-0.200" thickness, specifically designed for 1/2" screw applications. Manufactured from 316 stainless steel for optimal performance in corrosive environments. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial procurement.