Value Collection 42481 M8 External Tooth Lock Washer 100pk

Product Description

The VALUE COLLECTION 42481 is an external tooth lock washer designed for use with M8 screws. It features a spring steel construction that provides reliable tension and bite against mating surfaces to resist loosening under vibration and dynamic loads. The washer measures 8.62mm inside diameter and 15mm outside diameter, with a thickness of 0.8mm. The uncoated finish leaves the spring steel bare, making it suitable for applications where coating compatibility or post-treatment is a consideration. Trade professionals install these washers in mechanical assemblies, electrical panels, HVAC equipment, and general fastening applications where fastener retention is required.

These external tooth lock washers are used across a wide range of light-duty to medium-duty fastening scenarios. The external tooth design grips both the fastener bearing surface and the substrate to prevent rotational loosening. Common install locations include equipment enclosures, control panel assemblies, sheet metal fabrication, and structural fastening in residential and commercial trade work. This listing is sold in a package quantity of 100 pieces, making it practical for service vans, job site kits, and shop stock.

Key Features

• External tooth design grips mating surfaces to resist vibration-induced loosening
• Spring steel construction delivers consistent tension and bite across the full washer diameter
• 8.62mm inside diameter fits M8 fasteners
• 15mm outside diameter provides adequate bearing surface coverage
• 0.8mm thickness suits standard M8 fastener stack-ups
• Uncoated finish for applications requiring bare steel or post-treatment
• Sold in a package of 100 washers

Compatibility

Designed as a standard external tooth lock washer for use with M8 screws in general mechanical, electrical, and HVAC fastening applications.

Installation Notes

Installation requires no special tools beyond standard hand or power fastening equipment. Place the washer between the fastener head and the workpiece surface with the teeth facing outward to ensure proper grip engagement. Ensure mating surfaces are clean and free of debris before assembly. Always torque fasteners to values specified by the equipment manufacturer or applicable codes.