Value Collection LWIS1371USA-025BX Grade 8 Split Lock Washer

Product Description

The VALUE COLLECTION LWIS1371USA-025BX is a Grade 8 spring steel split lock washer designed for 1-3/8 inch screw applications. It features a yellow zinc dichromate finish that provides corrosion resistance in demanding fastener assemblies. With a minimum inside diameter of 1.379 inches, a maximum inside diameter of 1.408 inches, and a maximum outside diameter of 2.219 inches, this washer delivers a precise fit under bolt or nut heads. The 0.344 inch thickness gives it the spring tension needed to resist loosening under vibration and dynamic loads. This washer is installed by millwrights, maintenance mechanics, pipefitters, and structural assembly technicians working with heavy-duty bolted connections.

This split lock washer is suited for industrial, commercial, and heavy mechanical assembly applications where Grade 8 fastener hardware is specified. It is used in structural connections, machinery mounts, pipe supports, and equipment frames that require reliable anti-loosening performance under vibration or cyclic loading. Each order is fulfilled in a minimum quantity of 25 pieces per box, making it appropriate for maintenance stockrooms and production line use.

Key Features

• Grade 8 spring steel construction provides high tensile strength and reliable locking tension
• Yellow zinc dichromate finish offers corrosion and oxidation resistance
• Inside diameter range of 1.379 to 1.408 inches fits standard 1-3/8 inch fasteners precisely
• Maximum outside diameter of 2.219 inches ensures proper bearing surface coverage
• 0.344 inch thickness delivers consistent spring deflection under torque
• Inch measurement system; does not meet military specifications

Compatibility

Designed as an OEM-style replacement or stock replacement split lock washer for use with 1-3/8 inch screw and bolt assemblies requiring Grade 8 hardware in inch-dimensioned fastener systems.

Installation Notes

Split lock washers are installed by mechanics, millwrights, and assembly technicians as part of bolted joint assemblies. Place the washer between the nut or bolt head and the mating surface before torquing the fastener. Follow the applicable fastener torque specification for the bolt grade and size used in the joint. De-energize or lock out equipment per OSHA lockout-tagout procedures before servicing any bolted mechanical assembly.