Value Collection 31354 Internal Tooth Lock Washer 100-pack

Product Description

The VALUE COLLECTION 31354 is a zinc-plated, Grade 2 steel internal tooth lock washer sized for 1/4 inch screws. Internal tooth lock washers grip the mating surface with inward-facing serrated teeth that bite into the fastener bearing surface and the workpiece, resisting loosening caused by vibration and torque relaxation. The 31354 measures 0.025 inches thick with a minimum inside diameter of 0.256 inches and a maximum outside diameter of 0.478 inches. This package contains 100 washers. Electricians, HVAC technicians, and general trade mechanics use these washers in panel assemblies, equipment mounting, and electrical grounding applications where fastener retention under vibration is required.

Internal tooth lock washers in this size range are common in light-gauge electrical enclosures, control panels, and mechanical equipment frames. The zinc plating provides basic corrosion resistance suitable for indoor and sheltered applications. Grade 2 steel construction meets standard commercial fastener requirements. This 100-piece pack suits bench stock, service vans, and small-volume production or assembly work across electrical, HVAC, and general mechanical trades.

Key Features

• Internal serrated teeth grip both fastener and mating surface to resist vibration-induced loosening
• Zinc-plated finish provides basic corrosion resistance for indoor and sheltered environments
• Grade 2 steel construction meets standard commercial fastener requirements
• 0.025 inch thickness fits standard 1/4 inch screw fastener assemblies
• Inside diameter range of 0.256 to 0.267 inches for consistent fit on 1/4 inch fasteners
• 100-piece package suits bench stock and service inventory replenishment

Compatibility

Designed for use with 1/4 inch screws and bolts in standard fastener assemblies. Suitable for electrical enclosures, mechanical equipment mounting, and control panel applications requiring internal tooth lock washer retention.

Installation Notes

Install lock washers between the fastener head or nut and the workpiece surface with the teeth facing the mating surface to maximize grip. Ensure the mating surfaces are free of paint or coatings that would prevent the teeth from seating properly where grounding continuity is required. De-energize and lock out any electrical equipment before working in panel or enclosure assemblies per NFPA 70E safe work practices. Do not reuse lock washers after removal, as tooth deformation reduces retention effectiveness.