Value Collection MKCS04C0309MBPKG M4x0.7 Socket Cap Screw 50pk

Product Description

The VALUE COLLECTION MKCS04C0309MBPKG is an M4x0.7 alloy steel socket cap screw engineered for demanding mechanical and structural fastening applications. With a 30 mm length under the head and partial threading, this screw provides a strong clamped-shank zone that resists joint loosening under vibration and dynamic loads. The hex drive accepts a 3 mm hex key, allowing controlled torque application in tight quarters. A zinc-blue trivalent chromate finish delivers corrosion resistance while meeting RoHS and REACH compliance requirements. Manufactured to DIN 912 and ISO 4762 standards at a material grade of 12.9, these fasteners are sold in a package of 50.

This socket cap screw is suited for precision mechanical assemblies, HVAC equipment frames, electrical enclosures, pump housings, and other trade-grade applications where a high-strength, small-diameter fastener is required. The M4 coarse thread pitch and right-hand thread direction are standard across most metric equipment and machinery encountered in residential and light commercial service. The partial thread configuration makes these especially useful in through-hole and clearance-hole assemblies where the unthreaded shank must bear shear loads.

Key Features

• M4x0.7 coarse right-hand thread, partially threaded for shear-load capability
• Grade 12.9 alloy steel construction for high tensile and yield strength
• Zinc-blue trivalent chromate finish — RoHS and REACH compliant
• Conforms to DIN 912 and ISO 4762 fastener standards
• 3 mm hex drive with 7 mm head diameter for compact installation clearances
• Sold in a quantity of 50 per package, minimum order of 1 package

Compatibility

Designed as a standard metric replacement or stock fastener for any assembly specifying an M4x0.7 coarse-thread socket cap screw per DIN 912 or ISO 4762.

Installation Notes

Installation is performed with a 3 mm hex key or hex-bit driver. Verify mating thread condition and ensure the tapped hole depth accommodates the threaded portion before driving. Grade 12.9 fasteners are susceptible to hydrogen embrittlement if improperly lubricated or over-torqued — consult the equipment manufacturer torque specification for M4 grade 12.9 hardware. Do not substitute these fasteners in applications requiring a different material grade or thread form without engineering review.