Value Collection LWIS0311USA-100BX Split Lock Washer 100pk

Product Description

The VALUE COLLECTION LWIS0311USA-100BX is a Grade 2 spring steel split lock washer designed for use with 5/16 inch screws. The helical split design creates a spring tension that resists loosening caused by vibration, torque, and thermal cycling. The yellow zinc dichromate finish provides corrosion resistance in moderate-duty environments. With an inside diameter of 0.314 inches, a maximum outside diameter of 0.583 inches, and a thickness of 0.078 inches, this washer meets standard dimensional requirements for 5/16 inch fastener assemblies. This box contains 100 washers. Licensed tradespeople, maintenance mechanics, and general contractors rely on split lock washers as a cost-effective method to maintain clamp load on bolted joints over time.

These split lock washers are suited for general industrial, commercial, and residential mechanical assemblies where vibration resistance is required. Common applications include structural steel connections, equipment mounting, electrical panel work, HVAC equipment fastening, and plumbing fixture installation. The inch-system dimensioning makes these washers compatible with standard fractional fastener hardware commonly used across North American trade and construction work. The yellow zinc dichromate finish is appropriate for indoor and lightly controlled outdoor environments where moderate corrosion protection is adequate.

Key Features

• Grade 2 spring steel construction delivers consistent clamping force and bite under load
• Split helical design resists loosening from vibration and dynamic loading
• Yellow zinc dichromate finish provides moderate corrosion resistance
• Inside diameter range of 0.314 to 0.322 inches fits standard 5/16 inch fasteners
• Pack of 100 supports volume fastener work and reduces per-unit cost
• Inch measurement system aligns with North American fractional fastener standards

Compatibility

Designed for use with 5/16 inch screws and bolts in standard inch-system fastener assemblies. Suitable for general mechanical, structural, and equipment-mounting applications where a split lock washer is specified.

Installation Notes

Split lock washers are installed between the fastener head or nut and the mating surface before final torquing. Ensure mating surfaces are clean and free of debris before assembly. Always de-energize or shut down equipment before performing any fastener work on electrical, HVAC, or mechanical systems. These washers do not meet military specifications and should not be substituted in applications requiring MIL-spec hardware.