S-92353A110 0.381" ID x 0.68" OD ASME B18.21.1 Coil Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress applications, ensuring long-term assembly integrity
• Hot-dipped galvanized steel construction provides exceptional corrosion protection for extended service life in harsh environments
• Rockwell C38 hardness rating delivers consistent spring tension and reliable locking performance under heavy loads
• Precision-engineered dimensions (0.381" ID, 0.68" OD) ensure perfect fit with 3/8" fasteners for optimal load distribution
• ASME B18.21.1 compliance guarantees consistent quality and interchangeability across industrial applications
• Heavy-duty 0.094" thickness maintains structural integrity and spring force through repeated compression cycles
• Coil spring design creates continuous tension that compensates for thermal expansion and material relaxation

Professional Applications & Engineering Value

These 3/8" coil lock washers solve critical vibration-induced loosening problems in industrial machinery, construction equipment, and heavy vehicle assemblies. The hot-dipped galvanized finish on steel provides superior corrosion resistance for outdoor and marine applications where environmental factors degrade standard fasteners. The unique coil spring mechanism maintains constant preload tension, effectively damping vibrations that cause conventional fasteners to back out. Engineered to ASME B18.21.1 specifications, these washers deliver predictable performance in critical joints where failure isn't an option, making them ideal for structural connections, motor mounts, and heavy equipment that experiences dynamic loading conditions.

Specification Summary & Compliance

Manufactured to exact inch system dimensions: 0.381" inner diameter, 0.68" outer diameter, and 0.094" thickness for compatibility with 3/8" fasteners. The Rockwell C38 hardness ensures consistent spring properties, while full compliance with ASME B18.21.1 standards guarantees dimensional accuracy, material quality, and performance reliability. The hot-dipped galvanized finish meets industrial corrosion protection requirements for extended service life in demanding environments.