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The VALUE COLLECTION 644501PS is a metric hex head cap screw used to fasten metal components in industrial, mechanical, and structural assemblies. Manufactured from Grade 8.8 steel with a bright uncoated finish, this fastener delivers a reliable tensile strength rating appropriate for general-purpose bolted connections. The partially threaded shank follows DIN 931 and ISO 4014 standards, with a thread size of M8 x 1.25 and a length under head of 80 mm. The 13 mm hex drive size is compatible with standard metric wrenches and sockets. Mechanical assemblers, maintenance technicians, and fabricators working in metric applications will find this screw a straightforward, code-conforming choice for a wide range of joint configurations.
This fastener is suited for metric bolted assemblies in manufacturing, equipment maintenance, machine building, and general structural work. The M8 x 1.25 thread pitch and 80 mm length under head make it appropriate for medium-depth through-bolt or tapped-hole applications where a partially threaded shank is required to allow bearing surfaces to clamp properly. It is sold individually but must be ordered in multiples of 50 units to meet the minimum order quantity requirement.
Designed as a standard DIN 931 and ISO 4014 metric hex head cap screw for use in any M8 x 1.25 tapped hole or through-bolt assembly requiring a partially threaded fastener.
Installation is performed by mechanical assemblers or maintenance technicians using standard metric hand tools or power tools with appropriate torque control. Always consult the equipment manufacturer or applicable engineering specification for the required torque value before tightening — do not estimate torque for structural or pressure-bearing joints. Ensure mating threads are clean and free of debris before assembly. The uncoated finish offers no corrosion protection, so evaluate the service environment and apply a suitable lubricant or protective coating if exposed to moisture or corrosive media.
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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