Value Collection 644046PR Hex Head Cap Screw M8 X 1.25

Product Description

The VALUE COLLECTION 644046PR is a metric hex head cap screw designed for general mechanical fastening applications requiring a partially threaded shank. Built to Grade 8.8 steel, this fastener delivers a medium-high tensile strength suitable for structural and machine assembly work. The M8 x 1.25 thread profile and 40 mm length under head make it a standard size across a wide range of industrial, automotive, and equipment fabrication jobs. The bright uncoated finish means no surface coating to account for in torque calculations or coating compatibility reviews. Hex drive measures 13 mm across flats. Conforms to DIN 931 and ISO 4014 standards.

This screw is appropriate for metric fastening tasks in light to medium structural assemblies, machine frames, brackets, and equipment enclosures. The partial threading leaves a smooth shank section beneath the head, which is useful when the fastener passes through clearance holes before engaging a tapped bore or nut. Commonly specified in manufacturing, maintenance and repair operations, and fabrication shops where metric hardware is standard. Sold individually with a minimum order quantity of 100 pieces.

Key Features

• Grade 8.8 steel construction for medium-high tensile strength in structural fastening
• Partially threaded shank per DIN 931 and ISO 4014 standards
• M8 x 1.25 metric thread size, 40 mm length under head
• 13 mm hex drive compatible with standard metric wrenches and sockets
• Bright uncoated finish — no coating variables affecting clamp load calculations
• UNSPSC Code 31161501 for procurement and catalog classification

Compatibility

Designed for use in any application requiring a DIN 931 or ISO 4014 compliant M8 x 1.25 partially threaded hex head cap screw in Grade 8.8 steel.

Installation Notes

Installation is performed with a 13 mm wrench or socket. Verify that the mating thread or nut matches the M8 x 1.25 metric pitch before installation to avoid cross-threading. Always torque to the specification published in the applicable engineering standard or equipment service manual for Grade 8.8 fasteners at this diameter. Inspect threads and seating surfaces for contamination or damage before assembly.