[25 PKG] Medium Split Lock Washers Thru Hardened Black 1-1/4

Upgrade your fastener kit with our Medium Split Lock Washers Thru Hardened Black 1-1/4. These washers combine a robust through-hardened steel core with a smooth black finish for enhanced durability and corrosion resistance. Sized for 1-1/4 applications, they provide a reliable locking action in a compact form.

Designed to resist loosening under vibration and impact, these split lock washers bite into mating surfaces to maintain clamping force in demanding environments. The split design adds tension as the bolt is tightened, improving load retention and security.

Key Features

• Through-hardened steel for superior strength and long-lasting performance.
• Black oxide finish offers corrosion resistance and a low-reflective surface.
• Size: 1-1/4 inches to fit standard fasteners in this range.
• Self-locking action minimizes self-loosening under vibration.
• Easy installation with standard bolts and nuts in a single step.

Applications

Ideal for automotive, machinery, construction, and general industrial use where secure fastening and vibration resistance are essential. Use these washers in equipment housings, machinery assemblies, and any project requiring a reliable locking solution.