Value Collection 741056PS M3 Lock Washer 3.2mm Id Zinc

Product Description

The VALUE COLLECTION 741056PS is an external tooth lock washer designed for use with M3 screws. It features a 3.2mm inside diameter and a 6.0mm outside diameter, with a thickness of 0.4mm. Constructed from Grade 2 spring steel with a zinc-plated finish, this washer bites into mating surfaces under load to resist loosening from vibration or torque. The external tooth design provides a wide contact area and strong locking engagement. This type of hardware is installed by electricians, HVAC technicians, plumbers, and mechanical contractors wherever fastener retention is required in light-duty to medium-duty assemblies.

This washer is suited for residential and light commercial applications involving M3 fasteners. Common install scenarios include electrical panel assemblies, control board mounting, sheet metal enclosures, and small equipment frames. The zinc plating provides basic corrosion resistance in dry or mildly humid indoor environments. Sold in a package of 1 unit with a minimum order quantity of 200 units, making it appropriate for contractors and technicians stocking hardware for service or production work.

Key Features

• External tooth design locks against mating surfaces to resist vibration-induced loosening
• Grade 2 spring steel construction provides reliable elasticity and holding force
• Zinc-plated finish offers basic corrosion resistance for indoor applications
• 3.2mm ID fits M3 screws without modification
• 0.4mm thickness suits tight fastener stack-up tolerances

Compatibility

Designed for use with M3 screws. Fits assemblies requiring a 3.2mm inside diameter external tooth lock washer with a 6.0mm outside diameter.

Installation Notes

Install between the fastener head and the mating surface with the teeth facing the surface to be locked. Ensure the mating surface is clean and free of coatings that would prevent tooth engagement. Torque the M3 fastener to the specification required by the assembly design. Do not reuse lock washers once a fastener assembly has been disassembled, as the teeth may be deformed and locking effectiveness reduced.