S-92962A111 0.174" ID x 0.267" OD ASME B18.21.1 Split Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance ensures fasteners remain securely locked even under intense dynamic loads and machinery vibrations.
• Exceptional durability with Rockwell C38 hardness provides reliable spring action and long service life in demanding industrial environments.
• Enhanced corrosion protection from the black-oxide steel finish, extending component lifespan in various operating conditions.
• Precise dimensional fit with 0.174" ID and 0.267" OD ensures perfect compatibility with No. 8 screws, preventing loosening and misalignment.
• Industry-standard compliance with ASME B18.21.1 guarantees consistent quality, interchangeability, and performance reliability.
• Environmental regulation adherence through RoHS 3 and REACH compliance makes these washers suitable for global supply chains and sensitive applications.
• Optimal thickness design at 0.042" provides the ideal balance between spring tension and installation space requirements.

Professional Applications & Engineering Value

This black-oxide steel split lock washer delivers critical engineering solutions where vibration-induced fastener loosening poses significant operational risks. The split lock design creates continuous spring tension against both the bearing surface and fastener head, effectively maintaining clamp load in industrial machinery, automotive assemblies, and electrical equipment. The Rockwell C38 hardness ensures the washer maintains its spring properties through repeated compression cycles, while the black-oxide coating provides essential corrosion resistance without significantly altering dimensions. Engineered specifically for No. 8 screw size applications, this washer prevents rotational slippage and maintains joint integrity in high-vibration environments where standard flat washers would fail, making it indispensable for maintenance, manufacturing, and assembly operations requiring dependable vibration-resistant fastening solutions.

Specification Summary & Compliance

This standard split lock washer features precise inch system dimensions: 0.174" ID, 0.267" OD, and 0.042" thickness, engineered for optimal performance with No. 8 screw size applications. Manufactured to ASME B18.21.1 specifications, it ensures dimensional accuracy and functional reliability. The washer is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental standards for hazardous substance restrictions. Constructed from black-oxide steel with Rockwell C38 hardness, it delivers consistent mechanical properties and corrosion resistance for industrial fastening requirements.