Value Collection MKCS03C0509MBPKG M3x0.5 Socket Cap Screw 25pk

Product Description

The VALUE COLLECTION MKCS03C0509MBPKG is an M3x0.5 partially threaded socket cap screw engineered for high-strength mechanical fastening in precision assemblies. Built from alloy steel to material grade 12.9, it delivers exceptional tensile strength suited for demanding industrial and mechanical applications. The hex drive accepts a 2.5 mm hex key for secure torque application. A zinc-blue trivalent chromate finish provides corrosion resistance while meeting RoHS and REACH compliance requirements. This package contains 25 screws. Licensed tradespeople, machinists, and maintenance technicians working with close-tolerance assemblies will find this fastener a reliable stock item.

This socket cap screw is appropriate for use in machinery, fixtures, tooling, and structural assemblies where a high-strength metric fastener with a low-profile head is required. The partially threaded shank allows the unthreaded portion to bear shear loads while the threaded section engages the mating component. The coarse M3x0.5 thread pitch and right-hand thread direction conform to DIN 912 and ISO 4762 standards, making this screw a direct fit for metric-threaded applications across industrial, OEM, and MRO environments.

Key Features

• Alloy steel construction, material grade 12.9 for high tensile and proof load strength
• Partially threaded shank to handle shear loads through the unthreaded body section
• Hex socket drive accepts a 2.5 mm hex key for precise torque application in confined spaces
• Zinc-blue trivalent chromate finish provides corrosion resistance without hexavalent chromium
• Conforms to DIN 912 and ISO 4762 fastener standards
• RoHS and REACH compliant; trivalent chromate coating meets current environmental regulations
• Sold in a package of 25 screws

Compatibility

Designed as a standard metric socket cap screw per DIN 912 and ISO 4762 for use in any M3x0.5 coarse-thread tapped hole requiring a grade 12.9 partially threaded fastener.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a 2.5 mm hex key or hex bit driver. Verify that the mating tapped hole is clean, free of debris, and dimensioned to M3x0.5 coarse thread before installation. Apply thread-locking compound or specified preload torque values per the assembly drawing or equipment manufacturer documentation, as no specific torque value is provided with this fastener listing. Grade 12.9 fasteners are not recommended for re-use in critical joints after yielding.