S-93837A230 8.5 mm ID x 12.7 mm OD DIN 7980 Split Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening under dynamic loads and mechanical stress
• Zinc-plated steel construction provides excellent corrosion protection for extended service life in industrial environments
• Rockwell C44 hardness rating ensures exceptional durability and maintains locking performance through repeated use
• Precision M8 sizing (8.5mm ID × 12.7mm OD) guarantees perfect fit and consistent performance with standard metric fasteners
• DIN 7980 certification confirms compliance with rigorous German engineering standards for dimensional accuracy and quality
• Environmental compliance with RoHS 3 and REACH regulations makes these washers suitable for global supply chains and regulated industries
• Standard split lock design creates continuous spring tension that maintains clamping force despite vibration or thermal cycling

Professional Applications & Engineering Value

This M8 split lock washer delivers critical vibration resistance in demanding mechanical assemblies where loosening could compromise safety or performance. The zinc-plated steel construction provides essential corrosion protection while maintaining the Rockwell C44 hardness needed for repeated disassembly and reassembly cycles. Engineered to DIN 7980 standards, these metric lock washers offer precise dimensional control for reliable performance in automotive, machinery, and industrial equipment applications. The split design creates continuous spring action that compensates for settlement, wear, and thermal expansion, making them ideal for anti-vibration applications in motors, pumps, and moving assemblies where maintaining preload is essential for operational reliability.

Specification Summary & Compliance

This M8 split lock washer features precise dimensions of 8.5mm internal diameter and 12.7mm external diameter with 1.9-2.1mm thickness, manufactured to DIN 7980 specifications for dimensional accuracy and performance. The product maintains Rockwell C44 hardness for consistent locking force and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental responsibility and suitability for global industrial applications requiring certified mechanical fasteners.