Value Collection 744450PS M45 Split Lock Washer Grade 8

Product Description

The VALUE COLLECTION 744450PS is a metric split lock washer designed for use with M45 fasteners. Made from Grade 8 spring steel with a bright uncoated finish, it delivers the tension and hardness needed to resist loosening under vibration and dynamic loads. The washer conforms to DIN 127 standards and carries a Rockwell hardness rating of 44 to 51 HRC. With a 45.5mm minimum inside diameter, 71.2mm outside diameter, and 7mm thickness, it fits standard M45 screw applications in heavy industrial and structural assemblies. Licensed trades and industrial maintenance professionals working with large-diameter fastener assemblies will find this washer sized for demanding torque environments.

This washer is suited for heavy-duty bolted connections requiring reliable vibration resistance. Typical applications include industrial machinery, structural steel connections, large equipment frames, and heavy-duty fabrication work where M45 fasteners are specified. The uncoated spring steel construction is appropriate for controlled environments or where a secondary coating will be applied after assembly. The DIN 127 fastener standard ensures dimensional consistency with other metric hardware in the assembly.

Key Features

• Conforms to DIN 127 metric fastener standard for dimensional consistency
• Grade 8 spring steel construction provides high clamp-load retention under vibration
• Hardness of 44 to 51 HRC for resistance to deformation under heavy torque
• Bright uncoated finish suitable for post-assembly coating or controlled indoor environments
• 45.5mm to 46.7mm inside diameter range accommodates standard M45 screw bodies
• 7mm thickness delivers substantial split-lock bite for large-diameter fastener applications

Compatibility

Designed for use with M45 metric screws and bolts in assemblies requiring DIN 127 split lock washers. Verify inside diameter clearance against actual fastener shank diameter before installation.

Installation Notes

Installation is typically performed by industrial mechanics, millwrights, or structural ironworkers using calibrated torque equipment appropriate for M45 fastener assemblies. Place the washer between the nut or bolt head and the mating surface before tightening. Do not reuse split lock washers that have been fully compressed flush, as the locking function is lost once the split is closed. Follow applicable fastener torque specifications from the equipment manufacturer or relevant structural standards.