Value Collection 42453 M7 Split Lock Washer Grade 8 Din 127

Product Description

The VALUE COLLECTION 42453 is a metric split lock washer designed for M7 fastener applications requiring reliable tension retention under load. Manufactured from Grade 8 spring steel with a zinc plated finish, this washer delivers a Rockwell hardness of 44 to 51 HRC, providing the elastic resistance needed to resist fastener loosening caused by vibration and thermal cycling. With an inside diameter of 7.1 to 7.5mm, a maximum outside diameter of 12.8mm, and a thickness of 1.7mm, the 42453 conforms to DIN 127 standards. Electricians, millwrights, and mechanical contractors use this type of hardware in panel assemblies, equipment mounting, and structural fastening applications.

This split lock washer is suited for metric fastening applications across industrial, commercial, and light structural environments. It pairs with M7 screws and bolts where axial load and vibration resistance are required. The zinc plated finish provides baseline corrosion protection in moderate exposure conditions. This washer is sold individually per package, with a minimum order quantity of 200 pieces, making it appropriate for MRO stocking, kitting operations, and production line use.

Key Features

• Grade 8 spring steel construction with 44 to 51 HRC hardness range
• DIN 127 fastener standard compliance for metric applications
• Zinc plated finish for moderate corrosion resistance
• Inside diameter range of 7.1 to 7.5mm accommodates M7 fasteners
• 1.7mm thickness provides consistent spring action under torque
• Minimum order quantity of 200 units supports production and MRO procurement

Compatibility

Designed for use with M7 metric screws and bolts in applications conforming to DIN 127 split lock washer specifications.

Installation Notes

Install this washer between the fastener head or nut and the mating surface before torquing. Power down or de-energize any equipment before servicing fastened assemblies in electrical or mechanical systems. Do not reuse split lock washers that have been fully compressed, as the spring action is reduced after full deflection. Follow applicable mechanical or structural codes for fastener torque requirements based on the assembly being serviced.