Value Collection R63082162 Internal Tooth Lock Washer

Product Description

The VALUE COLLECTION R63082162 is a stainless steel internal tooth lock washer designed for use with number 12 screws. It features an inside diameter of 0.394 inches and an outside diameter of 0.41 inches, with a thickness of 0.025 inches. Constructed from Grade 410 stainless steel, this washer provides reliable resistance to loosening caused by vibration and rotational forces. The internal tooth design bites into both the fastener bearing surface and the mating material to maintain clamping load. Electricians, plumbers, HVAC technicians, and mechanical contractors use this type of hardware in panel assemblies, equipment mounting, and general mechanical fastening applications.

This internal tooth lock washer is suited for light-duty mechanical and electrical assemblies where a compact locking solution is required. The small outside diameter relative to the inside diameter makes it well-suited for installations where clearance around the fastener head is limited. Grade 410 stainless steel offers moderate corrosion resistance, making it appropriate for indoor mechanical environments and light outdoor or wet-location applications where mild corrosion protection is needed.

Key Features

• Internal tooth design grips fastener and mating surface to resist loosening under vibration
• Grade 410 stainless steel construction for corrosion resistance in light-duty environments
• Inside diameter of 0.394 inches fits number 12 screws
• Outside diameter of 0.41 inches provides a compact footprint for tight clearance applications
• Thickness of 0.025 inches for minimal stack height in assembled joints

Compatibility

Designed for use with number 12 screws as an internal tooth lock washer in mechanical and electrical fastening assemblies.

Installation Notes

This washer is installed between the fastener head or nut and the mating surface. Seat the washer flat against both surfaces before torquing the fastener to ensure full tooth engagement. Always de-energize electrical equipment and follow applicable NEC guidelines before working inside panels or enclosures. Inspect washers for deformation before reuse, as compressed teeth reduce locking effectiveness.