S-93501A021 0.748" ID x 1.063" OD Heavy-Vibration-Resistant Spring Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress environments
• Dual-sided serration design provides maximum grip on both contact surfaces
• Rockwell C40 hardness ensures exceptional durability and long service life
• Precision metric sizing (M18) guarantees perfect compatibility with standard fasteners
• Environmental compliance meets RoHS 3 and REACH standards for safe industrial use
• Optimized dimensions (0.748" ID x 1.063" OD) provide reliable seating and distribution
• Steel construction delivers consistent performance in demanding applications

Professional Applications & Engineering Value

This M18 metric spring lock washer addresses critical vibration-induced failure points in industrial assemblies. The top and bottom serration pattern creates multiple biting edges that maintain clamping force under dynamic loads, effectively solving common loosening issues in machinery, automotive, and construction equipment. Manufactured from steel with Rockwell C40 hardness, it withstands repeated compression cycles without deformation. The metric sizing ensures precise fit with M18 fasteners while the dual-serration design provides superior locking performance compared to standard washers, making it ideal for heavy-duty applications where vibration resistance and reliability are paramount.

Specification Summary & Compliance

This spring lock washer features precise dimensional specifications including 0.748" internal diameter, 1.063" outer diameter, and 0.091" overall height. Manufactured to metric system standards for M18 screw compatibility, it maintains consistent performance across industrial applications. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant (updated 01/17/2023, 233 SVHC), meeting current environmental safety regulations for industrial components.