Value Collection 31336 Split Lock Washer 1-1/4 in Grade 5

Product Description

The VALUE COLLECTION 31336 is a split lock washer sized for 1-1/4 inch fasteners, manufactured from Grade 5 steel with a zinc-plated finish for corrosion resistance. The washer features an inside diameter range of 1.254 to 1.28 inches and a maximum outside diameter of 2.036 inches, with a thickness of 0.384 inches. The split design creates spring tension under a fastener head or nut, resisting loosening from vibration and torque. This washer is installed by mechanics, millwrights, pipefitters, and general tradespeople wherever a 1-1/4 inch bolted connection requires positive locking action.

This split lock washer is suited for use in structural assemblies, mechanical equipment mounts, pipe flange connections, and general industrial fastening applications where vibration or dynamic loading is present. It is measured and specified in the inch system of measurement. The zinc-plated finish provides a base level of corrosion resistance appropriate for indoor and protected outdoor installations. This item is sold individually, with a minimum order quantity of 25 pieces per order.

Key Features

• Grade 5 steel construction for reliable tensile and shear strength in standard bolted joints
• Zinc-plated finish provides corrosion resistance for general-purpose and light-duty environments
• Inside diameter range of 1.254 to 1.28 inches fits 1-1/4 inch nominal fasteners
• Maximum outside diameter of 2.036 inches provides adequate bearing surface
• 0.384 inch thickness delivers consistent spring tension to resist fastener back-off
• Split ring design resists loosening under vibration and cyclic loading

Compatibility

Designed for use with 1-1/4 inch nominal screws, bolts, and nuts in inch-system fastening applications across mechanical, structural, and industrial assembly work.

Installation Notes

Install the split lock washer between the fastener head or nut and the mating surface before torquing. Ensure the fastener and washer material are compatible to avoid galvanic corrosion in exposed environments. Follow applicable mechanical or structural codes for fastener torque requirements for the joint being assembled. Do not reuse split lock washers that have been fully compressed flat, as they will no longer provide effective locking tension.