Value Collection MKCS05C0409MBPKG M5x0.8 Socket Cap Screw 50pk

Product Description

The VALUE COLLECTION MKCS05C0409MBPKG is a partially threaded M5x0.8 socket cap screw designed for precision fastening in mechanical, structural, and industrial assembly applications. Built from grade 12.9 alloy steel with a zinc-blue trivalent chromate finish, this screw delivers high tensile strength and corrosion resistance in a compact hex-drive form factor. The 40 mm length under head and coarse right-hand thread make it suitable for a wide range of bolted joint applications where a reliable, high-strength fastener is required. Sold in a package of 50 units, this SKU is well suited for shop stock or job-lot use by maintenance technicians, millwrights, and mechanical contractors.

This socket cap screw is commonly used in HVAC equipment assemblies, pump and motor mountings, electrical enclosures, and general mechanical panel fabrication. The M5x0.8 coarse thread and partial threading allow for controlled engagement depth in through-bolt and tapped-hole configurations. The 4 mm hex drive accepts standard hex keys and hex bit drivers. Conformance to DIN 912 and ISO 4762 fastener standards ensures dimensional consistency across replacement and new-installation use cases.

Key Features

• Grade 12.9 alloy steel construction for high tensile and proof load strength
• Zinc-blue trivalent chromate finish provides corrosion resistance and is RoHS and REACH compliant
• M5x0.8 coarse right-hand thread with partial threading for precise engagement control
• 4 mm hex drive compatible with standard Allen keys and hex bit sets
• Conforms to DIN 912 and ISO 4762 fastener standards for dimensional reliability
• Packaged in quantities of 50 for efficient shop stock replenishment

Compatibility

Designed as a DIN 912 and ISO 4762 compliant M5x0.8 socket cap screw suitable for tapped holes and through-bolt applications requiring a grade 12.9 high-strength fastener.

Installation Notes

Installation should be performed by a qualified technician or mechanic familiar with metric fastener standards and proper tightening procedures. Always verify thread engagement depth and hole condition before installation. Use a calibrated torque wrench appropriate for grade 12.9 M5 hardware and follow the equipment manufacturer torque specifications. Do not mix metric and imperial hardware in the same joint, and avoid over-driving which can strip threads or induce stress fractures in high-strength alloy fasteners.