S-91101A011 0.2" ID x 0.334" OD ASME B18.21.1 Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress industrial environments
• Exceptional durability with Rockwell C38 hardness maintains locking performance through repeated use
• Precise dimensional fit with 0.2" ID ensures perfect compatibility with No. 10 screws
• Reliable spring action provides consistent locking force across thermal cycles and mechanical stress
• Industry-standard compliance with ASME B18.21.1 guarantees consistent quality and performance
• Environmental responsibility through RoHS 3 and REACH compliance for sustainable operations
• Optimized geometry with 0.334" OD and 0.047" thickness balances strength and installation space requirements

Professional Applications & Engineering Value

These steel split lock washers deliver critical vibration resistance in demanding mechanical assemblies where No. 10 screws are subjected to dynamic loads and thermal cycling. The split lock design creates continuous spring tension that compensates for material relaxation and prevents spontaneous fastener loosening - a common failure point in industrial equipment. Manufactured from high-grade steel with Rockwell C38 hardness, these washers maintain their locking effectiveness through repeated disassembly cycles, making them ideal for maintenance-intensive applications. The precise 0.2" ID ensures perfect screw engagement while the standardized dimensions guarantee compatibility across industrial fastener systems. These ASME B18.21.1 compliant washers provide engineers with predictable performance in machinery, automotive, and heavy equipment applications where vibration-induced failures are unacceptable.

Specification Summary & Compliance

This standard split lock washer features precise inch-system dimensions: 0.2" internal diameter, 0.334" outer diameter, and 0.047" thickness specifically engineered for No. 10 screw size applications. Manufactured to ASME B18.21.1 specifications with Rockwell C38 hardness for consistent mechanical properties. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards ensures these washers meet the latest regulatory requirements for industrial components.