Value Collection MKCS20C1009MB M20x2.5 Socket Cap Screw

Product Description

The VALUE COLLECTION MKCS20C1009MB is a partially threaded socket cap screw engineered for demanding fastening applications where high clamping force and precise torque transfer are required. Built from Grade 12.9 alloy steel, this screw delivers tensile strength suited for heavy-duty mechanical assemblies, jigs, fixtures, and industrial equipment. The M20x2.5 coarse thread and 100 mm length under head make it a standard choice for thick-section clamping applications. A zinc-blue trivalent chromate finish provides corrosion resistance while maintaining RoHS and REACH compliance. The hex drive socket accepts a 17 mm hex key for high-torque installation.

This socket cap screw is used across a wide range of trade and industrial applications including machinery assembly, structural fixturing, HVAC equipment mounting, and general mechanical fabrication. The partially threaded shank provides a smooth bearing surface that aligns mating components accurately before the thread engages. It is installed by machinists, millwrights, HVAC equipment technicians, and mechanical contractors working on equipment frames, brackets, and heavy component assemblies.

Key Features

• Grade 12.9 alloy steel construction for high tensile and proof load strength
• M20x2.5 coarse right-hand thread for fast engagement and reliable clamping
• Partial threading provides a smooth shank for accurate component alignment
• 17 mm internal hex drive for high-torque installation with a standard Allen key or hex bit
• Zinc-blue trivalent chromate finish for corrosion resistance
• RoHS and REACH compliant — suitable for regulated equipment and environments
• Conforms to DIN 912 and ISO 4762 fastener standards

Compatibility

Designed as a standard DIN 912 and ISO 4762 socket cap screw compatible with any M20x2.5 threaded hole requiring a partially threaded fastener with a 30 mm head diameter.

Installation Notes

Installation should be performed by a qualified mechanic, millwright, or equipment technician using a calibrated torque wrench and a 17 mm hex key or socket bit. Always verify thread engagement and inspect the mating threaded hole for damage or contamination before installation. Follow equipment manufacturer torque specifications for Grade 12.9 fasteners at this diameter. Do not mix Grade 12.9 fasteners with lower-grade nuts or threaded inserts not rated for the corresponding load.