S-93279A100 6.2 mm ID x 12.1 mm OD ASME B18.21.2M Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through the split lock design, ensuring fasteners remain securely tightened in high-motion applications
• Enhanced durability and corrosion resistance with blue-dyed steel material and Rockwell C38 hardness for long-lasting performance
• Precise dimensional fit with 6.2mm ID, 12.1mm OD, and 2.0mm thickness, designed specifically for M6 screws to prevent loosening
• Reliable compliance with ASME B18.21.2M standards, guaranteeing consistent quality and engineering accuracy
• Environmental and safety assurance with full RoHS 3 and REACH compliance, making them safe for various industrial uses
• Easy identification and organization thanks to the distinctive blue dye, streamlining assembly and inventory management
• Cost-effective maintenance reduction by minimizing the need for frequent retightening in machinery and equipment

Professional Applications & Engineering Value

This M6 metric split lock washer is engineered to address common industrial challenges such as vibration-induced fastener loosening, which can lead to equipment failure and downtime. Made from blue-dyed steel with a Rockwell C38 hardness, it offers excellent spring action and resistance to deformation under load. The standard split lock washer type applies constant tension, maintaining bolt preload in dynamic environments like automotive assemblies, machinery, and electrical enclosures. Its precise 6.2mm ID, 12.1mm OD, and 2.0mm thickness ensure a snug fit for M6 screws, reducing the risk of wear and improving overall system reliability. By meeting ASME B18.21.2M specifications, it provides consistent performance in demanding applications, from manufacturing to construction, where vibration resistance is critical.

Specification Summary & Compliance

This washer features precise dimensions with an inner diameter of 6.2 mm, outer diameter of 12.1 mm, and thickness of 2.0 mm, designed for M6 screw sizes. It conforms to ASME B18.21.2M standards for split lock washers, ensuring dimensional accuracy and functional reliability. Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable industrial practices.