Value Collection LWIS0310USA-10LBBX Split Lock Washer

Product Description

The VALUE COLLECTION LWIS0310USA-10LBBX is a Grade 2 spring steel split lock washer designed for use with 5/16 inch screws. The split helical design bites into mating surfaces under load, resisting loosening caused by vibration and torque relaxation. With a zinc plated finish, it provides basic corrosion resistance suitable for general indoor and light-duty applications. The inside diameter runs 0.317 to 0.326 inches with a maximum outside diameter of 0.586 inches and a thickness of 0.078 inches. This washer is installed by electricians, plumbers, HVAC technicians, and general tradespeople wherever fastener retention under vibration is required.

This split lock washer is suited for residential and commercial assemblies where standard inch-measurement fasteners are used. Typical applications include equipment panels, conduit fittings, pipe hangers, fan assemblies, and general structural connections. The Grade 2 spring steel construction delivers consistent spring tension across a wide range of clamping loads. It is appropriate for indoor and protected outdoor environments where moderate corrosion resistance from the zinc plating is sufficient.

Key Features

• Split helical design provides mechanical locking action against vibration-induced loosening
• Grade 2 spring steel delivers consistent clamp load and spring-back force
• Zinc plated finish for basic corrosion resistance in general-use environments
• Inside diameter of 0.317 to 0.326 inches fits standard 5/16 inch fasteners
• Maximum outside diameter of 0.586 inches and thickness of 0.078 inches for compact fitment
• Inch measurement system; does not meet military specifications

Compatibility

Designed as a standard inch-series split lock washer for use with 5/16 inch screws and bolts in general mechanical, electrical, plumbing, and HVAC assembly applications.

Installation Notes

Split lock washers are installed by placing the washer flat side down against the work surface before seating the fastener head or nut. Always ensure mating surfaces are clean and free of debris before assembly. Do not reuse a compressed or fully flattened lock washer, as spring tension will be lost. Torque fasteners to the value specified for the fastener grade and application, not the washer.