Value Collection 31329 Split Lock Washer 1/2 in Grade 5

Product Description

The VALUE COLLECTION 31329 is a Grade 5 steel split lock washer designed for use with 1/2-inch screws and bolts. The zinc-plated finish provides basic corrosion resistance for general-purpose fastener assemblies in light industrial, mechanical, and trade applications. The washer features a split design that bites into the mating surface and fastener head under torque load, resisting loosening caused by vibration or thermal cycling. Inside diameter ranges from 0.502 to 0.512 inches with a maximum outside diameter of 0.869 inches and a thickness of 0.125 inches. Electricians, HVAC mechanics, plumbers, and general maintenance technicians use these washers wherever standard split lock retention is required.

This split lock washer is suited for residential and light commercial mechanical assemblies involving 1/2-inch fasteners. Common applications include equipment mounting, panel attachment, pipe hanger hardware, and structural bolted connections where vibration resistance is needed. The inch-measurement system and Grade 5 material make it appropriate for standard domestic fastener specifications across multiple trades.

Key Features

• Split lock design resists fastener back-off under vibration and thermal cycling
• Grade 5 steel construction for reliable strength in general-purpose fastener assemblies
• Zinc-plated finish for basic corrosion resistance
• Inside diameter 0.502 to 0.512 inches fits standard 1/2-inch fasteners
• 0.125-inch thickness provides consistent spring tension under load
• Inch measurement system compatible with standard domestic hardware

Compatibility

Designed as a standard-fit split lock washer for use with 1/2-inch screws, bolts, and threaded fasteners in general-purpose mechanical assemblies across HVAC, plumbing, electrical, and industrial applications.

Installation Notes

Install between the fastener head or nut and the mating surface with the split gap seated against the bearing face. Confirm fastener and washer material compatibility before installation in corrosive or high-humidity environments where upgraded finishes may be required. No special tools are required beyond standard hand or power wrenches. Follow applicable codes such as NEC or IFGC for fastener requirements in trade-specific assemblies.