Value Collection MP31331 Split Lock Washer 5/8 in Grade 5

Product Description

The VALUE COLLECTION MP31331 is a Grade 5 steel split lock washer designed for 5/8 inch screw applications. Split lock washers create tension between a fastener and mating surface to resist loosening caused by vibration or dynamic loads. This washer features a zinc-plated finish that provides basic corrosion resistance for general-purpose indoor and light-duty outdoor installations. With an inside diameter range of 0.628 to 0.641 inches and a maximum outside diameter of 1.073 inches, it is dimensionally suited to standard 5/8 inch fastener assemblies. Thickness is 0.156 inches. Tradespeople across mechanical, HVAC, plumbing, and electrical disciplines use split lock washers as a standard component in bolted joint assemblies.

This washer is used wherever a 5/8 inch fastener requires additional resistance to loosening. Typical applications include equipment mounting, structural connections, and mechanical assembly in both residential and light commercial settings. The zinc-plated finish makes it appropriate for interior applications and protected exterior environments where moderate corrosion resistance is acceptable. It is sold individually per package with a minimum order quantity of 50 pieces.

Key Features

• Grade 5 steel construction for reliable tensile strength in standard bolted joint applications
• Zinc-plated finish provides basic corrosion resistance
• Inside diameter range of 0.628 to 0.641 inches fits standard 5/8 inch fasteners
• Maximum outside diameter of 1.073 inches for consistent load distribution
• 0.156 inch thickness delivers proper spring tension when fastener is torqued
• Inch measurement system for straightforward compatibility verification

Compatibility

Designed as a standard split lock washer for use with 5/8 inch screws and bolts in general mechanical, HVAC equipment mounting, and structural fastening assemblies.

Installation Notes

Installation is performed by placing the washer on the fastener shank between the nut or bolt head and the mating surface before tightening. Power down or de-energize any equipment before servicing fastened assemblies on electrical or mechanical systems. Tighten fasteners to the torque value specified by the equipment manufacturer or applicable code. Do not reuse split lock washers that have been fully compressed flat, as they will no longer provide effective locking tension.