3/8" 18-8 Stainless Steel Lock Washers – Corrosion-Resistant – Qty 50

SKU: 3158
Product Type: Helical split lock washer
Size / Fit: 3/8" (for 3/8" screws/bolts; ~0.375" nominal screw diameter)
Material: 18-8 (304) stainless steel
Finish: Plain stainless, typically passivated (no coating)
Function: Provides spring tension and edge bite to resist loosening from vibration/shock
Compatibility: Works with 3/8-16 UNC and 3/8-24 UNF fasteners; use with matching stainless hardware
Standards/References: ASME B18.21.1 (split lock washers), ASME B1.1 (thread system reference for mating hardware)
Corrosion Resistance: Excellent—suitable for outdoor and marine environments
Magnetism: Non-magnetic to slightly magnetic (typical for 18-8)
Usage Notes: For soft or finished surfaces, consider a flat washer under the lock washer to protect the mating surface
Package Quantity: 50 washers