Value Collection 532121PR M8x1.25 Hex Socket Cap Screw

Product Description

The VALUE COLLECTION 532121PR is a fully threaded hex socket cap screw in M8 x 1.25 metric thread size with a 22 mm length under the head. Manufactured from alloy steel to a 12.9 material grade, it delivers high tensile strength suited for demanding mechanical assemblies. The black oxide finish provides mild corrosion resistance and reduces light reflection on finished assemblies. Drive type is internal hex, requiring a hex key or Allen driver for installation. This fastener meets DIN 912 and ISO 898-1 standards, making it a recognized choice for precision mechanical and industrial applications.

This screw is used in machine assembly, tooling fixtures, and structural fastening where a flush or low-profile head is needed. The M8 x 1.25 thread pitch and 22 mm under-head length make it suitable for moderate-depth tapped holes in steel, aluminum, and cast components. It is typically installed by machinists, millwrights, maintenance technicians, and mechanical assemblers. Sold individually with a minimum order quantity of 100 pieces.

Key Features

• M8 x 1.25 metric thread, fully threaded along the 22 mm under-head length
• Alloy steel construction at 12.9 material grade for high tensile and proof load strength
• Black oxide finish for mild corrosion resistance and reduced surface reflectivity
• Internal hex drive compatible with standard hex keys and Allen drivers
• Meets DIN 912 and ISO 898-1 fastener standards

Compatibility

Designed as a standard metric replacement or assembly fastener for any application requiring an M8 x 1.25 internal hex socket cap screw with a 22 mm under-head length and 12.9 grade alloy steel construction.

Installation Notes

Installation requires a properly sized hex key or socket driver; use of an undersized driver can strip the hex socket. Ensure the mating tapped hole is clean and free of debris before threading. Apply appropriate thread lubricant or thread-locking compound as required by the assembly specification. Torque to the value specified by the equipment manufacturer or structural engineer for 12.9 grade M8 fasteners.