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The VALUE COLLECTION 644577PR is a metric hex head cap screw designed for secure mechanical fastening in a wide range of industrial and trade applications. This fastener features an M5 x 0.80 thread with a 70 mm length under the head and is partially threaded along the shank. Manufactured from Grade 8.8 steel with a bright uncoated finish, it delivers reliable tensile strength for assemblies where a standard metric fastener is required. The 8 mm hex drive allows installation with common hex wrenches or sockets. It conforms to DIN 931 and ISO 4014 dimensional standards.
This screw is suited for general mechanical assembly, equipment fabrication, maintenance repairs, and structural fastening tasks where metric hardware is specified. Typical applications include machine frames, brackets, enclosures, and industrial equipment. The partially threaded shank provides a smooth bearing surface on the upper portion of the joint, making it appropriate for clamping applications where full thread engagement to the head is not desired. Installation is performed by trades and technicians working with metric fastener systems in manufacturing, HVAC equipment assembly, plumbing fixture mounting, and related fields.
Designed as a standard metric hex head cap screw per DIN 931 and ISO 4014, suitable for use in any application requiring an M5 x 0.80 partially threaded fastener of 70 mm length under head.
Installation is appropriate for qualified technicians and tradespeople familiar with metric fastener specifications and torque requirements. Always verify thread engagement depth and hole clearance before installation. Do not mix metric and imperial fasteners in the same joint assembly. Use calibrated torque tools when specified by the equipment manufacturer to avoid over-tightening Grade 8.8 fasteners.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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