S-90313A108 0.281" ID x 1.25" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
• Precise dimensional fit with 0.281" ID and 1.25" OD, providing optimal load distribution for 1/4" screw applications
• Consistent performance maintained through controlled thickness range (0.043-0.057") for uniform pressure distribution
• Environmental compliance assurance with full RoHS 3 and REACH compliance, meeting strict international regulatory standards
• Durable industrial-grade material that maintains integrity under mechanical stress and varying temperature conditions
• Broad compatibility with inch system fasteners, making them ideal for North American industrial applications
• Reliable surface protection for connected components, preventing galvanic corrosion and material degradation

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer delivers critical engineering solutions where corrosion resistance and dimensional precision are paramount. The 0.281" ID provides exact compatibility with 1/4" screws, while the substantial 1.25" OD creates an optimal bearing surface that distributes clamping force effectively, preventing surface damage and joint loosening in vibrating environments. Manufactured to inch system standards, these flat washers are engineered for demanding applications across multiple sectors including heavy machinery, marine equipment, food processing systems, and outdoor infrastructure where environmental exposure necessitates stainless steel components. The controlled thickness tolerance ensures consistent performance in assembly lines, reducing installation variables and improving manufacturing efficiency.

Specification Summary & Compliance

This precision flat washer features a 0.281" inner diameter and 1.25" outer diameter with thickness maintained between 0.043-0.057" for consistent performance. Manufactured from 18-8 stainless steel and designed specifically for 1/4" screw size applications in the inch measurement system. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring adherence to international standards for hazardous substance restrictions.