S-93279A500 16.4 mm ID x 27.9 mm OD ASME B18.21.2M Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance due to the split lock design, preventing fastener loosening in high-stress applications
• Enhanced durability and corrosion resistance from blue-dyed steel construction with Rockwell C38 hardness
• Precise dimensional fit with 16.4mm ID and 27.9mm OD ensuring compatibility with M16 metric screws
• Reliable performance compliance meeting ASME B18.21.2M standards for consistent quality and safety
• Environmental and regulatory safety with full RoHS 3 and REACH compliance for global industrial use
• Easy identification and organization through the distinctive blue dye coating in inventory systems
• Optimized for heavy-duty applications providing secure, long-lasting fastening in demanding environments

Professional Applications & Engineering Value

This M16 metric split lock washer is engineered to address critical vibration-induced loosening in industrial assemblies. Made from blue-dyed steel with a Rockwell C38 hardness, it offers exceptional spring action and fatigue resistance, maintaining clamp load under dynamic stresses. The standard split lock washer type ensures reliable performance in machinery, automotive, and construction sectors where secure fastening is paramount. Its precise 16.4mm ID and 27.9mm OD dimensions guarantee accurate fit with M16 screws, reducing installation errors and rework. By conforming to ASME B18.21.2M, it delivers consistent engineering value, minimizing downtime and enhancing safety in industrial fastener systems.

Specification Summary & Compliance

This washer features a 16.4mm inner diameter, 27.9mm outer diameter, and 4.8mm thickness, designed for M16 screw sizes. It meets ASME B18.21.2M specifications for dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global markets.