Value Collection 742116PS M12 Internal Tooth Lock Washer

Product Description

The VALUE COLLECTION 742116PS is an internal tooth lock washer designed for M12 screw applications. It is manufactured from Grade 2 spring steel with a zinc-plated finish that provides basic corrosion resistance in general-purpose fastening assemblies. The washer measures 13.0mm inside diameter and 20.5mm outside diameter with a 1.0mm thickness. Internal teeth bite into the bearing surface and fastener head as the nut or bolt is torqued, creating a mechanical lock that resists loosening from vibration. This type of washer is a standard hardware component installed by electricians, plumbers, HVAC technicians, millwrights, and general maintenance professionals wherever an M12 fastener requires additional anti-loosening retention.

This washer is suited for residential and commercial mechanical assemblies, electrical panel work, equipment mounting, and general structural fastening where an M12 bolt or screw is specified. The internal tooth design keeps the washer centered on the fastener shank during installation, which simplifies assembly in tight clearance situations. The zinc-plated spring steel construction is appropriate for indoor and light-duty applications. This item is sold individually but carries a minimum order quantity of 100 pieces, making it practical for shop stock, service vans, or production-line use.

Key Features

• Internal tooth design centers on M12 fastener shank and bites into mating surface under load to resist vibration loosening
• Spring steel construction provides consistent tooth tension and elastic recovery during torque-down
• Zinc-plated finish delivers basic corrosion protection for indoor and low-moisture environments
• Grade 2 material classification suitable for standard general-purpose fastening applications
• 1.0mm thickness fits standard M12 bolt clearance stacks without excessive added height
• Minimum order quantity of 100 pieces supports bulk restocking for service and production use

Compatibility

Designed as a standard internal tooth lock washer for use with M12 screws and bolts in general-purpose mechanical, electrical, and structural fastening assemblies.

Installation Notes

Install with the teeth facing the fastener head or nut bearing surface, not the workpiece, unless application requirements specify otherwise. Ensure the mating surfaces are clean and free of debris so the teeth can seat properly under torque. Do not reuse lock washers that have been fully compressed or show signs of tooth deformation, as spring recovery will be reduced. Follow applicable mechanical or electrical code requirements for fastener torque specifications relevant to the specific assembly being serviced.