Value Collection 361300PR M42 Split Lock Washer Grade 8

Product Description

The VALUE COLLECTION 361300PR is an M42 metric split lock washer designed to resist fastener loosening caused by vibration, torque relaxation, and thermal cycling. Manufactured from Grade 8 spring steel with a zinc plated finish, this washer delivers a hardness rating of 44 to 51 HRC, providing reliable bite against mating surfaces under load. The split ring design stores mechanical energy when compressed, exerting continuous axial tension on the fastener assembly. Licensed trades and maintenance professionals working with heavy industrial fastener assemblies will find this washer suited to demanding bolted joint applications.

This washer is intended for use with M42 screw-size fasteners in metric bolted assemblies. The inside diameter ranges from 42.5 to 43.7 mm and the outside diameter measures 68.2 mm, with a thickness of 7 mm. Applications include heavy equipment fabrication, structural steel connections, and industrial machinery assembly where metric hardware and DIN 127 standards are specified. It is sold as an individual piece with a minimum order quantity of 5 units.

Key Features

• Grade 8 spring steel construction with 44 to 51 HRC hardness for high-load fastener retention
• Zinc plated finish for corrosion resistance in standard service environments
• Conforms to DIN 127 fastener standard for metric split lock washers
• Inside diameter range of 42.5 to 43.7 mm accommodates M42 fastener shank tolerances
• 7 mm thickness provides substantial spring deflection under compression
• Metric system of measurement — compatible with DIN and ISO metric fastener assemblies

Compatibility

Designed for use with M42 metric fasteners conforming to DIN 127 specifications in industrial and structural bolted joint assemblies.

Installation Notes

Installation is typically performed by millwrights, ironworkers, or maintenance mechanics working on heavy industrial or structural assemblies. Always de-energize and lock out equipment before servicing any bolted joint on powered machinery. Place the washer flat side down against the bearing surface, with the split gap oriented away from the fastener head, before torquing the fastener to the assembly specification. Consult applicable industry standards for proper fastener torque values, as no torque specification is supplied with this part.