Value Collection KP61010 Split Lock Washer 5/16 in 500 Pack

Product Description

The VALUE COLLECTION KP61010 is a Grade 2 spring steel split lock washer sized for 5/16 inch screws and fasteners. Split lock washers create tension between a fastener and the mating surface, resisting loosening caused by vibration and thermal cycling. This washer features a zinc-plated finish for basic corrosion resistance in general-purpose applications. The inside diameter ranges from 0.318 to 0.328 inches, the maximum outside diameter is 0.596 inches, and the thickness is 0.097 inches. Each package contains 500 washers. These are commonly installed by electricians, plumbers, HVAC technicians, millwrights, and general contractors working with standard inch-series fasteners.

This washer is suited for residential and light commercial construction, mechanical assemblies, panel mounting, and equipment installation where a standard 5/16 inch inch-series fastener is used. The zinc plating provides moderate protection against rust in dry to mildly humid indoor environments. The Grade 2 spring steel material delivers reliable load-bearing tension in non-critical fastening applications where military-specification hardware is not required. The 500-piece pack is well suited for job-site use, service van stock, or shop inventory.

Key Features

• Sized for 5/16 inch screws with an ID range of 0.318 to 0.328 inches
• Maximum outside diameter of 0.596 inches for standard clearance fits
• Thickness of 0.097 inches providing consistent spring tension under load
• Grade 2 spring steel construction for reliable elasticity and load retention
• Zinc-plated finish for basic corrosion resistance in indoor applications
• Pack of 500 for high-volume fastening tasks and inventory stocking

Compatibility

Designed for use with standard 5/16 inch inch-series screws and bolts in general-purpose mechanical and construction assemblies.

Installation Notes

Install the split lock washer between the fastener head or nut and the mating surface before torquing the fastener. Ensure the fastener, washer, and mating material are compatible in terms of finish and galvanic potential to avoid accelerated corrosion. Power down any electrical equipment or relieve system pressure before servicing fastened assemblies. Do not reuse split lock washers that have been fully compressed flat, as they will no longer provide effective locking tension.