Value Collection -42756-1 M8x1.25 Hex Socket Cap Screw

Product Description

The VALUE COLLECTION -42756-1 is a metric hex socket cap screw designed for high-strength fastening applications across industrial, mechanical, and structural assemblies. It features an M8 x 1.25 thread size with a 55 mm length under head and is partially threaded along the shank. Manufactured from alloy steel to a 12.9 material grade, it is finished with a black oxide coating that provides moderate corrosion resistance and a low-glare surface. The internal hex drive accepts a standard Allen key or hex bit driver for installation and removal in tight clearances.

This screw is suited for use in machine assembly, tooling fixtures, equipment frames, and precision mechanical components where a high-strength, socket-drive fastener is required. The DIN 912 and ISO 898-1 standards it conforms to make it a common specification in OEM fabrication, maintenance and repair operations, and general industrial manufacturing environments. It is sold in a minimum order quantity of 50 pieces, making it appropriate for production or shop-stock replenishment.

Key Features

• M8 x 1.25 metric thread size with 55 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 finish for moderate corrosion resistance and reduced surface reflectivity
• Internal hex (Allen) drive compatible with standard metric hex keys and bits
• Conforms to DIN 912 and ISO 898-1 fastener standards

Compatibility

Designed as a standard DIN 912 metric hex socket cap screw for use in any application requiring an M8 x 1.25 thread pitch at 55 mm length under head, consistent with ISO 898-1 grade 12.9 specifications.

Installation Notes

Installation is performed with a metric hex key or hex bit driver sized for M8 socket cap screws. Ensure mating threaded holes are clean and dimensionally correct before driving. Always torque fasteners in accordance with the applicable equipment manufacturer specifications or engineering drawings for grade 12.9 hardware. Wear appropriate PPE when handling black oxide coated hardware and avoid contact with incompatible chemicals that may degrade the finish.