Value Collection 31348 External Tooth Lock Washer 1/2 in 100pk

Product Description

The VALUE COLLECTION 31348 is a zinc-plated, Grade 2 steel external tooth lock washer sized for 1/2 inch screws and fasteners. The external tooth design bites into both the fastener bearing surface and the mating material to resist loosening from vibration and torque. Inside diameter ranges from 0.512 to 0.529 inches, accommodating standard 1/2 inch fastener shanks. Outside diameter spans 0.882 to 0.898 inches. Thickness is 0.039 inches. The zinc plating provides basic corrosion resistance for general indoor and light-duty applications. This package contains 100 washers. These washers are installed by electricians, plumbers, HVAC technicians, and general mechanical tradespeople wherever fastener retention under vibration is needed.

External tooth lock washers in this size are commonly used in light electrical enclosures, panel assemblies, equipment mounting, and general mechanical assemblies. The 1/2 inch screw size fits widely across residential and commercial equipment mounting applications. Grade 2 steel construction suits standard-duty fastening where high-strength alloy grades are not required. This item is sold in a package quantity of 100, making it practical for bench stock or job-site replenishment.

Key Features

• External tooth profile locks against vibration by biting into fastener and substrate surfaces
• Zinc-plated finish for basic corrosion resistance in general-duty environments
• Grade 2 steel construction for standard-duty fastening applications
• Inside diameter 0.512 to 0.529 inches fits standard 1/2 inch fastener shanks
• Thickness of 0.039 inches provides consistent spring tension under load
• Package of 100 washers for bench stock or field replenishment

Compatibility

Designed for use with 1/2 inch screws and bolts in general mechanical, electrical, and HVAC equipment assembly applications where an external tooth lock washer is specified.

Installation Notes

Install with the teeth facing the fastener head or nut, not against the mating surface finish when surface protection is a concern. Power down or de-energize any electrical assembly before installing or removing hardware inside enclosures. Use the appropriate drive tool for the fastener type to avoid stripping. Follow applicable NEC or equipment manufacturer guidelines when installing hardware in electrical panels or mechanical systems.