Value Collection -42759-2 M8x1.25 Hex Socket Cap Screw

Product Description

The VALUE COLLECTION -42759-2 is a metric hex socket cap screw designed for demanding fastening applications in industrial, mechanical, and fabrication work. Sized M8 x 1.25 with a 100 mm length under head, this screw is partially threaded and features an internal hex drive socket for use with Allen or hex key tooling. Manufactured from alloy steel with a black oxide finish, it carries a material grade of 12.9, indicating high tensile strength suitable for high-load assemblies. Machinists, millwrights, and maintenance technicians install these screws where flush or recessed fastening is required.

This screw is well suited for machine assembly, equipment mounting, tooling fixtures, and structural fastening in both production and maintenance environments. The partial threading provides a consistent clamping force and is appropriate for through-bolt applications where the shank must pass through a clearance hole. It conforms to DIN 912 and ISO 898-1 standards, making it interchangeable with other metric fasteners built to those specifications. Sold individually with a minimum order quantity of 25 pieces.

Key Features

• M8 x 1.25 thread size with 100 mm length under head
• Grade 12.9 alloy steel construction for high tensile strength
• Black oxide finish provides mild corrosion resistance and reduces light reflection
• Partial threading supports through-bolt and clamping applications
• Internal hex drive socket compatible with standard Allen key tooling
• Meets DIN 912 and ISO 898-1 fastener standards

Compatibility

Designed as a DIN 912 and ISO 898-1 compliant metric hex socket cap screw for M8 x 1.25 thread applications requiring a Grade 12.9 alloy steel fastener.

Installation Notes

Installation is performed using a properly sized hex key or Allen driver; use of an undersized key can round the socket drive and should be avoided. Ensure mating threads are clean and free of debris before installation. Follow applicable torque specifications from the equipment manufacturer or relevant engineering standards for Grade 12.9 fasteners. Power down and de-energize any equipment before disassembling or fastening mechanical assemblies.