Value Collection 31347 7/16 in Steel Lock Washer 100pk

Product Description

The VALUE COLLECTION 31347 is a zinc-plated steel external tooth lock washer sized for 7/16 inch screws and fasteners. External tooth lock washers grip both the fastener head and the mating surface, resisting loosening caused by vibration and torque. The serrated outer teeth bite into the workpiece when the fastener is tightened, providing a positive mechanical lock. Constructed from Grade 2 steel with a zinc plating finish, these washers offer corrosion resistance suitable for general mechanical and structural assembly work. Supplied in a package of 100 pieces, making them practical for high-volume fastener applications.

These washers are used across a wide range of trade and industrial applications including HVAC equipment assembly, electrical panel and enclosure mounting, plumbing fixture attachment, and general mechanical fabrication. They are appropriate for residential and light commercial installations wherever standard external tooth locking is required on a 7/16 inch fastener. Electricians, HVAC technicians, plumbers, and maintenance professionals commonly stock these for panel grounding connections and equipment mounting tasks.

Key Features

• External tooth design provides vibration-resistant locking on 7/16 inch fasteners
• Grade 2 steel construction for general-purpose mechanical strength
• Zinc-plated finish for corrosion resistance in typical indoor and light-duty environments
• 0.035 inch thickness provides consistent clamping force without excessive stack height
• Maximum inside diameter of 0.463 inches fits standard 7/16 inch screw shanks
• Pack of 100 pieces for efficient stocking and high-volume use

Compatibility

Designed as a standard external tooth lock washer for use with 7/16 inch screws and bolts in general mechanical, electrical, HVAC, and plumbing assembly applications.

Installation Notes

Install between the fastener head and the mating surface with the teeth facing the workpiece to ensure proper grip. Tighten the fastener to the torque specification required by the assembly drawing or applicable code. These washers are not rated for military specification applications. Use appropriate hand tools or power drivers suited to the fastener type being installed.