Value Collection MP31518 Wedge Lock Washer 5/8 in Steel

Product Description

The VALUE COLLECTION MP31518 is a wedge lock washer designed to maintain fastener tension under vibration and dynamic loading. It features a 1.008-inch outer diameter, an inside diameter range of 0.662 to 0.678 inches, and a 0.992-inch minimum OD. Constructed from Grade 2 steel with a zinc flake finish over zinc plating, this washer resists corrosion in typical indoor and light industrial environments. It is sized for 5/8-inch (M16) threaded fasteners and sold in packages of 10. Mechanical assemblers, maintenance technicians, and industrial tradespeople install these washers wherever bolt loosening from vibration or thermal cycling is a concern.

This wedge lock washer is suited for mechanical assemblies, structural connections, and equipment mounting applications where standard flat or split-lock washers provide insufficient retention. The paired cam profile on the washer face generates a locking force that increases under load, making it appropriate for use in machinery, HVAC equipment mounting, electrical panel assemblies, and similar trade applications. The 5/8-inch thread size covers a broad range of common fastener sizes encountered in residential and commercial mechanical work.

Key Features

• Wedge-cam locking geometry maintains clamp load under vibration and shock
• 1.008-inch outer diameter sized for 5/8-inch (M16) fasteners
• Inside diameter range of 0.662 to 0.678 inches for consistent fitment
• Grade 2 steel construction provides reliable mechanical strength
• Zinc flake over zinc-plated finish for corrosion resistance
• Sold in a pack of 10 with a minimum order quantity of 1

Compatibility

Designed for use with 5/8-inch inch-series and M16 metric-series threaded fasteners in standard mechanical and structural assemblies.

Installation Notes

Installation requires no special tools beyond a standard torque wrench appropriate for the fastener size and application. Always de-energize or power down equipment before working on any assembly where electrical hazards are present. Install washers in mated pairs with the cam faces opposed to engage the locking action. Consult applicable codes such as the NEC or equipment manufacturer torque tables for final fastener torque values specific to the assembly.