Value Collection LWHIS137USA-010BX Split Lock Washer

Product Description

The VALUE COLLECTION LWHIS137USA-010BX is a Grade 8 spring steel split lock washer designed for 1-3/8 inch screw applications. Split lock washers create tension between a fastener and the mating surface, resisting loosening caused by vibration and dynamic loads. This washer features a bright uncoated finish and a minimum inside diameter of 1.379 inches, maximum inside diameter of 1.408 inches, maximum outside diameter of 2.301 inches, and a thickness of 0.422 inches. It is suited for heavy-duty bolted assemblies where fastener retention under load is a priority.

This split lock washer is used in structural, mechanical, and industrial bolted connections requiring Grade 8 material strength. Typical applications include equipment mounting, heavy machinery assembly, and structural steel connections where vibration or cyclic loading could otherwise cause fastener loosening. The inch-measurement system and standard screw sizing make this washer compatible with common 1-3/8 inch fastener hardware used across industrial and trade settings. This part does not meet military specifications.

Key Features

• Grade 8 spring steel construction for high tensile strength and load capacity
• Bright uncoated finish suitable for dry or protected environments
• Inside diameter range of 1.379 to 1.408 inches fits standard 1-3/8 inch screw shafts
• Maximum outside diameter of 2.301 inches provides broad bearing surface
• Thickness of 0.422 inches delivers consistent spring tension under torque
• Split design bites into fastener and mating surface to resist rotation and back-off

Compatibility

Designed as a standard-fit split lock washer for 1-3/8 inch screw and bolt fasteners in inch-measurement bolted assemblies. No specific model or equipment compatibility was provided by the manufacturer for this part.

Installation Notes

Split lock washers are installed by machinists, millwrights, pipefitters, and general mechanical trades during bolted joint assembly. Place the washer between the fastener head or nut and the mating surface before torquing. Ensure the mating surface is clean and free of debris to allow proper seating. Do not reuse split lock washers that have been fully compressed or deformed, as they will no longer provide effective spring tension.