S-91074A366 1.7" ID x 2.48" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through wedge lock design prevents fastener loosening in high-stress environments
• Enhanced locking performance with dual-sided serrations that bite into both mating surfaces for maximum security
• Exceptional durability with Rockwell C46 hardness rating ensuring long-term performance under heavy loads
• Reliable corrosion protection through zinc-flake coating that withstands harsh industrial conditions
• Precision metric sizing (1.7" ID x 2.48" OD) ensures perfect fit for M42 fasteners in demanding applications
• Full regulatory compliance with RoHS 3 and REACH standards for global market acceptance
• Optimized thickness range (0.250-0.270") provides consistent performance across varying assembly requirements

Professional Applications & Engineering Value

This M42 wedge lock washer delivers critical vibration resistance in demanding industrial applications where fastener security is paramount. The zinc-flake-coated steel construction provides exceptional corrosion resistance while maintaining the structural integrity needed for heavy machinery, construction equipment, and transportation systems. The top and bottom serration design creates a mechanical locking action that bites into both the fastener and mating surface, effectively preventing rotation and loosening caused by dynamic loads and vibration. Engineered with Rockwell C46 hardness, this metric lock washer maintains its locking capability through repeated stress cycles, making it ideal for critical bolted connections in manufacturing plants, infrastructure projects, and heavy equipment where failure is not an option.

Specification Summary & Compliance

This heavy-duty wedge lock washer features precision dimensions of 1.7" inner diameter and 2.48" outer diameter with thickness ranging from 0.250" to 0.270", specifically designed for M42 screw applications. Manufactured from zinc-flake-coated steel with Rockwell C46 hardness, the washer meets industrial standards for vibration-resistant fastening. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and global market acceptance for industrial applications.