S-92962A220 0.145" ID x 0.216" OD ASME B18.21.1 Split Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance due to the split lock design, preventing fastener loosening in high-stress environments
• Enhanced durability and corrosion protection from the black-oxide steel finish, extending service life in industrial settings
• Reliable hardness (Rockwell C38) ensures consistent spring-back action and maintains clamping force under load
• Precise dimensional fit with 0.145" ID and 0.216" OD for secure placement on No. 6 screws, reducing assembly errors
• Compliance with ASME B18.21.1 standards guarantees quality, interchangeability, and performance in mechanical systems
• Optimized thickness (0.030") provides effective locking without adding excessive bulk to assemblies
• Ideal for inch-system applications, ensuring compatibility with standard industrial equipment and fastener inventories

Professional Applications & Engineering Value

This split lock washer is engineered to address critical vibration-induced loosening in machinery, automotive, and heavy equipment assemblies. The black-oxide steel material offers a protective layer against rust and wear, while the Rockwell C38 hardness ensures the washer maintains its spring tension under cyclic loads. With precise dimensions like the 0.145" ID tailored for No. 6 screw size, it delivers secure fastening in confined spaces, reducing maintenance downtime. Its compliance with ASME B18.21.1 standards assures engineers of consistent performance in demanding industrial applications, from conveyor systems to electrical enclosures, where reliability is non-negotiable.

Specification Summary & Compliance

This washer features an ID of 0.145", OD of 0.216", and thickness of 0.030" with inch-system measurements, adhering to Class 2A thread fit tolerances for precise assembly. It meets the ASME B18.21.1 specification for split lock washers, ensuring dimensional accuracy and functional reliability. The black-oxide steel construction complies with industry standards for surface finish and is suitable for use in environments requiring basic corrosion resistance. Additionally, it aligns with general industrial safety and quality protocols, though specific RoHS or REACH declarations should be verified per batch for specialized applications.