S-92961A117 0.45" ID x 0.644" OD ASME B18.21.1 Split Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance through the split lock design prevents fastener loosening in high-stress applications
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in demanding environments
• Reliable hardness performance with Rockwell C38 rating ensures consistent spring action and load distribution
• Precise dimensional compatibility with 0.45" ID specifically engineered for 7/16" screw applications
• Industry-standard compliance with ASME B18.21.1 ensures consistent quality and interchangeability
• Environmental regulation adherence with RoHS 3 and REACH compliance for global industrial applications
• Optimized mechanical properties with 0.644" OD and 0.140" thickness providing balanced bearing surface and spring tension

Professional Applications & Engineering Value

This split lock washer delivers critical engineering solutions for industrial applications where vibration-induced fastener failure is a primary concern. The zinc-plated steel construction provides essential corrosion resistance while maintaining the mechanical properties necessary for repeated loading cycles. The precisely engineered split design creates continuous spring tension that compensates for thermal expansion, material relaxation, and dynamic loads. Particularly valuable in 7/16" screw applications across machinery assembly, automotive systems, and heavy equipment manufacturing, this washer addresses the fundamental challenge of maintaining joint integrity under constant vibration and shock loads. The Rockwell C38 hardness ensures the washer maintains its spring characteristics without permanent deformation, providing reliable performance in demanding industrial environments where fastener security is non-negotiable.

Specification Summary & Compliance

This split lock washer features precise dimensional specifications including 0.45" inner diameter, 0.644" outer diameter, and 0.140" thickness, manufactured to ASME B18.21.1 standards for consistent performance and interchangeability. The product maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and global market acceptance. Manufactured from zinc-plated steel with Rockwell C38 hardness, this standard lock washer is specifically designed for use with 7/16" fasteners in inch system applications.