S-92146A616 0.12" ID x 0.209" OD ASME B18.21.1 Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress environments, ensuring long-term joint integrity
• Exceptional corrosion resistance with Black-Oxide 18-8 Stainless Steel construction for reliable performance in harsh industrial conditions
• Precision dimensional fit with 0.12" ID specifically engineered for No. 4 screws, providing optimal fastener alignment and load distribution
• Enhanced durability with Rockwell C35 hardness rating, maintaining structural integrity under repeated stress cycles
• Industry-standard compliance with ASME B18.21.1 specifications, guaranteeing consistent quality and performance
• Environmental responsibility through RoHS 3 and REACH compliance, meeting strict international regulatory standards
• Reliable spring action from standard split lock design, maintaining constant tension and preventing rotational slippage

Professional Applications & Engineering Value

These Black-Oxide 18-8 Stainless Steel split lock washers deliver critical engineering solutions where vibration-induced fastener failure poses significant operational risks. The split lock washer design creates continuous spring tension that compensates for thermal expansion, material settling, and dynamic loads in industrial machinery, automotive assemblies, and electrical enclosures. The black-oxide surface treatment enhances corrosion resistance while maintaining dimensional stability, making these vibration resistant washers ideal for applications requiring both chemical protection and reliable locking performance. Engineered specifically for No. 4 screw size applications, these washers provide precise fitment that prevents bore damage and ensures uniform stress distribution across fastened components.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 standards with precise dimensional tolerances: 0.12" ID, 0.209" OD, and 0.025" thickness. Constructed from 18-8 Stainless Steel with Black-Oxide finish and hardened to Rockwell C35 for optimal performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets. The standard split lock washer type provides reliable spring action for maintaining fastener preload in inch-system applications.