Value Collection LWIS031GUSA-100BX Split Lock Washer 5/16 in

Product Description

The VALUE COLLECTION LWIS031GUSA-100BX is a steel split lock washer designed for use with 5/16-inch screws and fasteners. It features a hot-dipped galvanized finish that provides corrosion resistance in general industrial, mechanical, and construction applications. The washer measures 0.318 to 0.322 inches inside diameter and 0.583 to 0.586 inches outside diameter, with a thickness of 0.078 inches. The split ring design creates tension when compressed under a fastener head, resisting loosening caused by vibration and torque. Electricians, plumbers, HVAC technicians, and general contractors commonly use these washers in both interior and exterior installations where a secure, vibration-resistant connection is required.

This split lock washer suits a wide range of residential and light commercial applications including mechanical equipment mounting, pipe hangers, duct supports, electrical panel work, and structural fastening. It is sold in minimum order quantities of 100 units, making it appropriate for contractors and tradespeople who regularly stock fastener hardware. The hot-dipped galvanized finish extends service life in moderately corrosive or outdoor-exposed environments.

Key Features

• Fits 5/16-inch screw size for broad compatibility with standard fastener systems
• Hot-dipped galvanized finish provides corrosion resistance for indoor and outdoor use
• Split ring design resists loosening under vibration and dynamic loads
• Inside diameter range of 0.318 to 0.322 inches ensures proper fit on standard 5/16-inch fasteners
• Steel construction delivers reliable clamping force and durability
• Sold in multiples of 100 units, suitable for job-site and shop inventory stocking

Compatibility

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

Installation Notes

Install the split lock washer between the fastener head or nut and the mating surface before tightening. Ensure the split ends seat correctly against both surfaces as the fastener is torqued down. Do not reuse lock washers that have been fully compressed flat, as they will no longer provide effective locking force. Follow applicable codes such as NEC or IPC where fastener hardware requirements are specified for the trade application.