Value Collection 42754 M8x1.25 Hex Socket Cap Screw Alloy Steel

Product Description

The VALUE COLLECTION 42754 is a metric hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and trade environments. Sized at M8 x 1.25 with a 40 mm (approximately 1.57 inches) length under head, this screw is partially threaded and features a hex drive socket for use with a standard hex key or Allen wrench. Manufactured from alloy steel at material grade 12.9, it is one of the strongest fastener grades available and is finished with a black oxide coating to provide moderate corrosion resistance and a clean, low-reflectance appearance. Machinists, millwrights, equipment technicians, and general trade professionals install this type of fastener in demanding mechanical assemblies.

This screw is suited for use in machinery, jigs, fixtures, fabricated steel assemblies, and mechanical enclosures where a recessed-drive cap screw is required. The M8 x 1.25 thread pitch is the standard coarse pitch for the M8 diameter, making it widely compatible with tapped holes and threaded inserts conforming to DIN 912 and ISO 898-1 standards. Partial threading allows the unthreaded shank to act as a locating surface in precision applications. This SKU is sold individually with a minimum order quantity of 50 pieces.

Key Features

• M8 x 1.25 coarse thread, 40 mm length under head (approximately 1.57 inches)
• Grade 12.9 alloy steel construction for high tensile and proof load strength
• Black oxide finish for moderate corrosion resistance and reduced light reflection
• Partially threaded shank suitable for precision locating applications
• Hex socket drive accepts standard hex key or Allen wrench
• Conforms to DIN 912 and ISO 898-1 fastener standards

Compatibility

Designed as a direct-fit replacement or standard-service fastener for any tapped M8 x 1.25 hole in machinery, equipment, or fabricated assemblies conforming to DIN 912 specifications.

Installation Notes

Installation requires a properly sized metric hex key or hex bit driver; using an undersized or worn key risks rounding the socket. Always ensure the mating threaded hole is clean and free of debris before driving the screw. For grade 12.9 fasteners, consult the assembly or equipment manufacturer's torque specifications, as overtightening can cause thread stripping or fastener failure. De-energize or lock out any powered equipment before accessing fastener locations on live machinery.