Value Collection 31322 Grade 5 Split Lock Washer No. 8

Product Description

The VALUE COLLECTION 31322 is a No. 8 split lock washer made from Grade 5 steel with a zinc-plated finish. Split lock washers are used under nuts and bolt heads to resist loosening caused by vibration and torque. The helical split design bites into the fastener and mating surface under load, maintaining clamp force in assemblies subject to movement or vibration. This washer measures 0.167 to 0.174 inches inside diameter, 0.293 inches maximum outside diameter, and 0.04 inches thick. It is installed by electricians, plumbers, HVAC technicians, and general mechanical trades wherever a No. 8 fastener requires positive locking retention.

This split lock washer is suited for residential and light commercial mechanical assemblies where No. 8 fasteners are used in equipment panels, junction boxes, brackets, and similar hardware. The zinc-plated finish provides basic corrosion resistance for indoor and protected outdoor environments. The inch measurement system and Grade 5 steel rating make it appropriate for standard-duty fastening applications across multiple trades. Minimum order quantity is 250 pieces per order with a package quantity of 1.

Key Features

• Grade 5 steel construction for standard-duty mechanical strength
• Zinc-plated finish for basic corrosion resistance
• Helical split design resists loosening under vibration and torque
• Fits No. 8 screws with 0.167 to 0.174 inches inside diameter
• 0.04 inches thick with 0.293 inches maximum outside diameter
• Inch measurement system; does not meet military specifications

Compatibility

Designed for use with No. 8 screws in standard inch-series fastening applications. Suitable for use wherever a helical split lock washer is required under a No. 8 nut or bolt head in mechanical, electrical, and HVAC assemblies.

Installation Notes

Install between the fastener head or nut and the mating surface with the split ends positioned to bite into both surfaces as the fastener is tightened. Ensure the mating surface is clean and free of debris before installation. Do not reuse lock washers that have been fully compressed flat, as the locking action is reduced. Installation is performed by hand and common hand tools; no special equipment is required.