S-98437A112 0.322" ID x 0.457" OD ASME B18.21.1 Split Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance prevents loosening under dynamic loads, ensuring long-term joint integrity
• 18-8 stainless steel construction provides excellent corrosion resistance for harsh industrial environments
• Rockwell C35 hardness rating maintains spring tension and prevents deformation under heavy loads
• Precise 0.322" ID and 0.457" OD dimensions ensure perfect fit for 5/16" fasteners with no slippage
• ASME B18.21.1 compliance guarantees consistent quality and performance meeting industry standards
• RoHS 3 and REACH compliance makes these washers suitable for regulated industries and global supply chains
• Standard split lock design offers reliable, time-tested locking action for critical applications

Professional Applications & Engineering Value

This 18-8 stainless steel split lock washer delivers exceptional engineering value in applications where vibration-induced loosening compromises safety and performance. The split lock washer design creates continuous spring tension that counters rotational forces, making it ideal for industrial machinery, automotive assemblies, and electrical enclosures subject to constant motion. The Rockwell C35 hardness ensures the washer maintains its spring properties without taking a permanent set, while the corrosion-resistant 18-8 stainless steel construction withstands exposure to moisture, chemicals, and extreme temperatures. Engineered to ASME B18.21.1 standards, these washers provide predictable performance in critical fastening systems where failure is not an option.

Specification Summary & Compliance

This split lock washer features precise dimensions of 0.322" inner diameter, 0.457" outer diameter, and 0.093" thickness, specifically designed for 5/16" screw size applications. Manufactured to ASME B18.21.1 specifications for standard split lock washers, it ensures dimensional accuracy and consistent performance. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant (as of 06/14/2023, 235 SVHC), meeting the latest environmental and safety regulations for industrial components.