Value Collection 42759 M8x1.25 Hex Socket Cap Screw 80mm

Product Description

The VALUE COLLECTION 42759 is a metric hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. With an M8 x 1.25 thread size and an 80 mm length under head, this fastener is partially threaded and driven with a hex socket tool. Manufactured from alloy steel to material grade 12.9, it delivers exceptional tensile and proof load capacity relative to its size. A black oxide finish provides mild corrosion resistance and a consistent dark appearance. This screw meets DIN 912 and ISO 898-1 standards, making it a direct fit for applications that specify those fastener designations.

Grade 12.9 hex socket cap screws of this dimension are commonly used in machine tool assemblies, hydraulic equipment, automotive components, jigs and fixtures, and general industrial manufacturing. The M8 x 1.25 thread pitch is the standard coarse metric pitch for 8mm fasteners, widely specified in OEM and MRO settings across production and maintenance environments. Licensed millwrights, machinists, and maintenance technicians are the typical installers. Minimum order quantity is 50 pieces per order.

Key Features

• M8 x 1.25 metric coarse thread, 80 mm length under head
• Partially threaded shank for precise clamping and shear load performance
• Alloy steel construction, material grade 12.9 for high tensile strength
• Black oxide coating provides mild corrosion resistance and a uniform dark finish
• Meets DIN 912 and ISO 898-1 fastener standards
• Hex socket drive for high torque application with standard Allen keys or hex bits

Compatibility

Designed as a standard DIN 912 metric hex socket cap screw suitable for any assembly specifying an M8 x 1.25 grade 12.9 fastener with an 80 mm length under head.

Installation Notes

Installation should be performed by a qualified machinist, millwright, or maintenance technician familiar with metric fastener torque requirements for grade 12.9 hardware. De-energize, depressurize, or otherwise isolate the equipment before fastener service. Use a properly sized hex key or socket bit to avoid rounding the drive recess. Do not mix metric and unified thread hardware in the same assembly.