Value Collection 534218PR Flat Socket Cap Screw M12x1.75

Product Description

The VALUE COLLECTION 534218PR is a metric flat socket cap screw designed for applications requiring a low-profile, flush-mounted fastener. Manufactured from 12.9 grade alloy steel with a black oxide finish, it delivers high tensile strength and moderate corrosion resistance. The 90-degree flat head seats flush with or below the mating surface, making it suitable for assemblies where clearance is critical. It is driven by an 8 mm hex socket. Thread size is M12x1.75 with an overall length of 90 mm. Installation is performed by machinists, millwrights, and mechanical assembly technicians working to metric fastener standards.

This fastener is used in industrial machinery, tooling fixtures, structural assemblies, and mechanical equipment where a countersunk, flush-seated fastener is specified. The partial threading pattern is suited for applications requiring a grip length through non-threaded material before engaging a tapped bore. Typical install scenarios include machine frames, jigs, and metal-to-metal assemblies requiring high clamp load in a compact envelope. The DIN 7991 standard governs the dimensional and performance requirements for this fastener.

Key Features

• 12.9 grade alloy steel provides high tensile and proof load ratings suitable for demanding mechanical assemblies
• 90-degree flat head profile allows flush or countersunk seating to keep surfaces clear of protrusions
• 8 mm internal hex socket drive for high torque input with standard hex keys or socket drivers
• Black oxide finish reduces surface reflectivity and provides light corrosion resistance in controlled environments
• Partially threaded shank provides a bearing surface through clearance holes before engaging the tapped bore
• Conforms to DIN 7991 fastener standard for dimensional consistency and interchangeability

Compatibility

Designed as an OEM-style or maintenance replacement flat socket cap screw for metric-threaded M12x1.75 tapped bores requiring a DIN 7991 countersunk hex socket fastener.

Installation Notes

Installation is performed by qualified mechanical technicians or machinists. De-energize, depressurize, or lock out the equipment before fastener removal or installation in any live mechanical assembly. Use a calibrated torque wrench with the correct 8 mm hex bit to achieve proper clamp load without exceeding the fastener's proof load. Ensure the mating bore is cleanly tapped to M12x1.75 and the countersink angle matches the 90-degree head geometry before seating.