Value Collection 43178 Flat Socket Cap Screw M12x1.75

Product Description

The VALUE COLLECTION 43178 is a flat socket cap screw designed for precision fastening applications where a flush or countersunk head profile is required. Built to DIN 7991 standards, this metric fastener features an M12x1.75 thread and an overall length of 35 mm. The 90-degree flat head accepts an 8 mm hex socket drive for reliable torque transfer. Manufactured from 12.9 grade alloy steel with a black oxide finish, it delivers high tensile strength and moderate corrosion resistance. Machinists, millwrights, and mechanical assembly technicians install this screw where a recessed head is necessary to maintain a low-profile surface.

This fastener is suited for general industrial and mechanical assembly applications requiring a metric, countersunk socket screw. The fully threaded shank provides maximum thread engagement throughout the fastened joint. The black oxide finish reduces light reflection and offers mild protection against oxidation in controlled environments. It is commonly used in machine frames, fixtures, tooling plates, and equipment housings where flush mounting is a requirement.

Key Features

• 90-degree flat head with 8 mm hex socket drive for flush countersunk installation
• M12x1.75 metric thread, fully threaded along the entire shank
• Overall length of 35 mm measured as overall length per DIN 7991
• 12.9 grade alloy steel construction for high tensile and proof load capacity
• Black oxide finish provides mild corrosion resistance and low-reflectance appearance
• Conforms to DIN 7991 fastener standard for metric flat socket cap screws

Compatibility

Designed as a standard metric flat socket cap screw per DIN 7991, suitable for M12x1.75 threaded holes in industrial machinery, fixtures, and mechanical assemblies requiring a countersunk head profile.

Installation Notes

Installation requires an 8 mm hex socket key or driver rated for high-torque fasteners. Ensure the mating countersink angle matches the 90-degree head geometry before installation. Power down and de-energize any equipment before accessing fastened assemblies. Avoid over-torquing, which can cause galling or thread damage in the mating material; consult published torque tables for 12.9 grade M12 fasteners appropriate to the joint material.