S-96659A135 0.406" ID x 0.812" OD ASME B18.21.1 SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel with black-oxide coating, ideal for harsh industrial environments
• Precise dimensional accuracy with 0.406" ID and 0.812" OD ensuring perfect fit for 3/8" fasteners
• Enhanced load distribution through flat washer design, reducing surface pressure and preventing joint loosening
• Industry-standard compliance with ASME B18.21.1 specifications for reliable performance in critical applications
• Environmental regulation adherence with full RoHS 3 and REACH compliance for global supply chain compatibility
• Consistent thickness control (0.051-0.080") providing uniform clamping force across assemblies
• Long-term durability with stainless steel construction maintaining integrity under repeated stress cycles

Professional Applications & Engineering Value

These SAE flat washers deliver exceptional engineering value through their black-oxide 18-8 stainless steel construction, specifically engineered to address common industrial fastening challenges. The combination of corrosion-resistant material and protective surface treatment ensures reliable performance in demanding environments where moisture, chemicals, or temperature variations would compromise ordinary washers. The precise 3/8" sizing and flat design provide optimal load distribution, preventing surface damage and maintaining joint integrity in industrial machinery, automotive assemblies, and construction equipment. The controlled thickness variation ensures consistent performance across high-vibration applications, making these ASME B18.21.1 compliant washers essential for maintaining safety and reliability in critical fastening systems.

Specification Summary & Compliance

Manufactured to exact ASME B18.21.1 standards with dimensional specifications including 0.406" inner diameter, 0.812" outer diameter, and thickness range of 0.051-0.080" for 3/8" screw applications. These SAE flat washers in the inch measurement system feature black-oxide 18-8 stainless steel construction and maintain full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet the strictest international standards for industrial fastener applications.