Value Collection LWIS037USA-500BX Split Lock Washer 500

Product Description

The VALUE COLLECTION LWIS037USA-500BX is a 3/8 inch steel split lock washer designed to resist fastener loosening caused by vibration, torque relaxation, and thermal cycling. Finished bright and uncoated, this helical spring-type washer seats between a bolt head or nut and the mating surface, biting into both to maintain clamp load. The inside diameter ranges from 0.377 to 0.385 inches and the outside diameter ranges from 0.680 to 0.683 inches, with a nominal thickness of 0.094 inches. This box contains 500 washers. It is suited for general mechanical assembly in HVAC, plumbing, electrical, and industrial applications where standard hardware is specified.

Split lock washers in this size are commonly used in residential and light commercial installations wherever a 3/8 inch fastener is employed. Typical applications include equipment mounting, junction box hardware, pipe support brackets, duct hangers, and structural panel attachment. The uncoated bright finish makes these washers appropriate for dry or protected indoor environments. They are a standard consumable for service vans and shop stock where high-volume use is expected.

Key Features

• 3/8 inch screw size with 0.377 to 0.385 inch inside diameter range for consistent fit on standard 3/8 inch fasteners
• Outside diameter 0.680 to 0.683 inches provides adequate bearing surface to distribute clamp load
• 0.094 inch nominal thickness delivers reliable spring tension under fastener load
• Steel construction for strength and durability in general mechanical assembly
• Bright uncoated finish suitable for dry or protected indoor service environments
• Box quantity of 500 supports high-volume production, service, and shop-stock replenishment

Compatibility

Designed as a standard split lock washer for use with 3/8 inch machine screws and bolts across general mechanical, HVAC, electrical, and plumbing assembly applications.

Installation Notes

Split lock washers are installed by a qualified mechanic or trade technician as part of standard fastener assembly. Place the washer on the fastener shank between the nut or bolt head and the mating surface before tightening. Ensure the mating surface and fastener are clean and free of debris before assembly. Do not reuse lock washers that have been fully compressed flat, as spring tension will be lost.