Value Collection LWHIS031USA-100BX Split Lock Washer 100

Product Description

The VALUE COLLECTION LWHIS031USA-100BX is a Grade 2 spring steel split lock washer sized for 5/16-inch screws. Split lock washers work by biting into the mating surface and fastener head under torque load, resisting loosening caused by vibration and thermal cycling. This washer ships uncoated with a bright finish, making it suitable for general-purpose mechanical and structural assembly. The inside diameter runs 0.314 to 0.322 inches with a maximum outside diameter of 0.593 inches and a thickness of 0.097 inches. Sold in a box of 100 units, this part is used by electricians, HVAC technicians, plumbers, and general contractors wherever a standard split lock washer is required.

This split lock washer is intended for general industrial, commercial, and residential mechanical assembly applications. It is compatible with 5/16-inch fastener systems and is commonly used in equipment mounting, panel installation, pipe hanger assemblies, and structural connections. The uncoated bright finish is appropriate for indoor or protected environments where corrosion exposure is minimal. Installers working with machine screws, hex bolts, or carriage bolts in the 5/16-inch size range will find this washer a direct fit for standard hardware applications.

Key Features

• Grade 2 spring steel construction provides consistent locking tension under torque load
• Split lock design resists fastener loosening due to vibration and thermal movement
• Inside diameter of 0.314 to 0.322 inches fits standard 5/16-inch fasteners
• Maximum outside diameter of 0.593 inches suits standard clearance and countersink conditions
• Bright uncoated finish for use in dry or protected indoor environments
• Box of 100 units supports production, service, and maintenance workflows

Compatibility

Designed for use with 5/16-inch screw and bolt fasteners in standard inch-measurement assemblies. Fits wherever a Grade 2 spring steel split lock washer with a 0.314-inch minimum inside diameter and 0.593-inch maximum outside diameter is specified. Does not meet military specifications.

Installation Notes

Split lock washers are installed between the fastener head or nut and the mating surface before final torque is applied. Position the washer flat side down against the work surface and apply even torque until the split gap closes flush, indicating proper preload. Follow applicable codes such as the NEC or IFGC for fastener requirements in electrical or gas system installations. No special tools beyond standard hand or power drivers are required.