Value Collection 534220PR M12x1.75 Flat Socket Cap Screw

Product Description

The VALUE COLLECTION 534220PR is a metric flat socket cap screw engineered for applications requiring a flush or countersunk fastener profile. Built to DIN 7991, it features a 90-degree flat head with an 8 mm hex socket drive. The fastener is manufactured from Grade 12.9 alloy steel, the highest common metric strength classification, and finished with black oxide for moderate corrosion resistance and reduced surface glare. At M12x1.75 threading and 100 mm overall length with partial threading, this screw is suited for high-clamp-load bolted joints where the fastener head must sit flush with or below the mating surface. Licensed tradespeople and precision machinists typically specify this grade when joint integrity under dynamic or high-tensile loads is critical.

This flat socket cap screw is used in industrial machinery, tooling fixtures, structural assemblies, and mechanical equipment where a recessed fastener head is required for clearance or aesthetics. Its metric M12x1.75 thread form and DIN 7991 standard make it a common choice in European-spec equipment and any metric-dimensioned fabrication or maintenance environment. Partial threading provides improved shank grip in through-bolt and tight-tolerance bore applications.

Key Features

• Grade 12.9 alloy steel construction delivers high tensile and proof-load strength
• 90-degree flat head profile seats flush in standard countersunk holes per DIN 7991
• 8 mm hex socket drive accepts standard metric hex keys and socket bits
• Black oxide finish provides mild corrosion resistance and low-reflectance appearance
• Partially threaded shank improves alignment and shear resistance in close-tolerance bores
• Metric M12x1.75 thread standard for compatibility with metric nuts, inserts, and tapped holes

Compatibility

Designed as an OEM-style replacement or service fastener for metric-dimensioned assemblies specifying DIN 7991 flat socket cap screws in M12x1.75 thread size.

Installation Notes

Installation should be performed by a qualified mechanic or millwright familiar with metric fastener torque requirements for Grade 12.9 hardware. Ensure the mating countersink angle matches the 90-degree head geometry before installation. Clean threads and apply appropriate thread lubricant or thread-locking compound per the equipment manufacturer's specifications. De-energize, depressurize, or otherwise render safe any equipment before disassembling or replacing structural fasteners.