Value Collection MKBC08C040MBPKG M8x1.25 Button Socket Cap Screw

Product Description

The VALUE COLLECTION MKBC08C040MBPKG is a button socket cap screw designed for general mechanical fastening applications. It features an M8x1.25 thread pitch, a 40 mm length under head, and a low-profile domed button head driven by a 5 mm hex key. Manufactured from grade 10.9 alloy steel, the fastener meets ISO 7380 standards and carries a zinc-blue trivalent chromate finish for corrosion resistance and RoHS/REACH compliance. This package contains 10 fully threaded screws. Machinists, fabricators, maintenance technicians, and trade professionals working in HVAC, plumbing, and electrical panel assembly commonly use button socket cap screws where a flush, low-profile head is required.

These screws are suited for residential and commercial applications where space is limited and a standard hex socket cap head would protrude too far. Typical use cases include equipment panel assembly, bracket mounting, pump and motor housing fastening, and general structural assembly in metal fabrication. The fully threaded shank allows engagement along the entire grip length, making them practical for thin-material through-bolting and tapped-hole applications. The trivalent chromate coating provides a level of environmental compliance appropriate for installations requiring RoHS and REACH conformance.

Key Features

• M8x1.25 fully threaded shank for consistent thread engagement throughout the fastener length
• Grade 10.9 alloy steel construction provides high tensile strength for demanding fastening applications
• Low-profile button head design reduces protrusion in space-constrained assemblies
• 5 mm internal hex drive for precise torque application with standard hex keys or bit drivers
• Zinc-blue trivalent chromate finish offers corrosion resistance and meets RoHS and REACH compliance requirements
• Conforms to ISO 7380 fastener standard for dimensional consistency

Compatibility

Designed as a standard ISO 7380 button socket cap screw for use in any application requiring an M8x1.25 threaded fastener with a low-profile hex-driven head in alloy steel.

Installation Notes

Installation requires a 5 mm hex key or matching hex bit driver. Ensure mating threads are clean and free of debris before driving. Apply consistent torque appropriate for grade 10.9 hardware per the assembly specification. Do not mix with non-metric or mismatched thread-pitch hardware, as cross-threading will damage the mating surface.