Value Collection 549120PS M8x1.25 Socket Cap Screw Din 912

Product Description

The VALUE COLLECTION 549120PS is a metric hex socket cap screw designed for fastening applications that require corrosion resistance and reliable clamping force. Sized M8 x 1.25 with a 40 mm length under head, this screw is partially threaded and conforms to DIN 912, a widely recognized standard for socket head cap screws. Made from 316 austenitic stainless steel with a bright, uncoated finish, it is suited for environments where exposure to moisture, chemicals, or marine conditions is a concern. Licensed tradespeople and assembly technicians select this fastener when long-term corrosion resistance is a priority and standard carbon steel hardware is not appropriate.

This screw is used in a broad range of industrial, mechanical, and structural assembly applications including equipment fabrication, plumbing support structures, HVAC mounting hardware, and marine or food-grade installations. The DIN 912 profile is compatible with standard hex key (Allen) tooling and fits M8 clearance holes in typical machine frames, brackets, and flanges. The partial thread design provides a smooth unthreaded shank section, which is useful when clamping two components and concentrating clamping load at the bearing surface. Sold in minimum order quantities of 25 per order.

Key Features

• M8 x 1.25 thread size with 40 mm length under head — a common metric size for mid-duty structural fastening
• 316 austenitic stainless steel (Material Grade A4) offers excellent resistance to chlorides, salt water, and chemical exposure
• Partially threaded shank supports accurate component alignment and concentrates clamping load
• Conforms to DIN 912 standard for dimensional consistency and interchangeability
• Bright, uncoated finish — no plating residue or coating variability to factor into torque calculations
• Hex socket drive accepts standard metric hex keys and socket bits

Compatibility

Designed as a DIN 912-compliant M8 x 1.25 hex socket cap screw suitable for use wherever a partially threaded, 40 mm length-under-head Grade A4 stainless fastener is specified.

Installation Notes

Installation requires a metric hex key or hex bit socket sized for M8 socket cap screws. Ensure the mating threaded hole or nut meets M8 x 1.25 specifications before driving. When working with stainless fasteners, apply an appropriate anti-galling lubricant or anti-seize compound to prevent galling of the 316 stainless threads under torque. Never mix stainless and dissimilar metal fasteners in the same joint without accounting for galvanic corrosion potential.