Value Collection 239130BR External Tooth Lock Washer

Product Description

The VALUE COLLECTION 239130BR is a zinc-plated, steel external tooth lock washer designed for use with 5/8-inch screws. It features an inside diameter of 0.663 inches and an outside diameter of 1.071 inches, with a thickness of 0.05 inches. The external tooth design bites into the fastener and mating surface to resist loosening under vibration and dynamic loads. Built to Grade 2 material standards, this washer suits a wide range of mechanical assembly applications where a reliable, corrosion-resistant locking solution is needed. Electricians, plumbers, HVAC technicians, and general mechanical contractors commonly use external tooth lock washers in panel, equipment, and structural fastening tasks.

This washer is suited for residential and commercial trade applications where standard 5/8-inch fastener assemblies require added resistance to loosening. Typical install scenarios include electrical enclosure mounting, HVAC equipment securing, pipe hanger assemblies, and general mechanical connections. The zinc plating provides a baseline level of corrosion resistance appropriate for indoor and sheltered outdoor environments. Sold individually per package, with a minimum order quantity of 250 pieces.

Key Features

• External tooth design grips mating surface to resist fastener loosening under vibration
• 0.663-inch inside diameter fits standard 5/8-inch screws
• 1.071-inch outside diameter provides broad load distribution
• Zinc-plated finish for corrosion resistance in typical indoor environments
• Grade 2 steel construction for reliable mechanical performance
• 0.05-inch thickness for low-profile installation in tight assemblies

Compatibility

Designed as a standard external tooth lock washer for use with 5/8-inch screw fasteners in general mechanical, electrical, plumbing, and HVAC assembly applications.

Installation Notes

Installation is performed by placing the washer between the fastener head and the mating surface before tightening. Ensure the toothed side contacts the mating surface or fastener head to achieve the intended locking action. Always verify fastener and washer material compatibility when working in corrosive or high-moisture environments. Follow applicable NEC or mechanical code requirements when used in electrical or trade equipment assemblies.