Value Collection 41942 M8x1.25 Button Socket Cap Screw 40mm

Product Description

The VALUE COLLECTION 41942 is a fully threaded M8x1.25 button socket cap screw designed for metric fastening applications in mechanical assemblies, fabrication, and maintenance work. At 40mm length under the head, this fastener is driven with a 5mm hex socket key. It is manufactured from Grade 10.9 alloy steel, which provides high tensile strength suitable for demanding structural and mechanical connections. The black oxide finish offers mild corrosion resistance and a low-reflectance appearance. This screw conforms to ISO 7380 and uses a right-hand thread with a 4G/6G thread fit class. Machinists, fabricators, millwrights, and maintenance technicians are the primary installers of this fastener type.

This button socket cap screw is suited for use in machine frames, panels, enclosures, brackets, and general mechanical assemblies where a low-profile head is required. The button head profile reduces the overall protrusion above the mating surface compared to a standard socket head cap screw, making it a practical choice in tight-clearance installations. It is sold in multiples of 25 units per order, with a package quantity of 1. Typical applications include light to medium structural connections, equipment guards, and precision assembly work in industrial and commercial settings.

Key Features

• M8x1.25 thread size, fully threaded, 40mm length under head
• Grade 10.9 alloy steel construction for high tensile strength
• Button head profile provides low-profile, flush-fitting installation
• 5mm hex socket drive for positive torque engagement
• Black oxide finish for mild corrosion resistance and reduced reflectance
• Conforms to ISO 7380 fastener standard with right-hand thread direction

Compatibility

Designed as a metric ISO 7380 button socket cap screw compatible with standard M8x1.25 threaded holes in metal fabrication, machine assembly, and maintenance applications requiring a low-profile hex socket fastener.

Installation Notes

Installation is performed by machinists, fabricators, or maintenance technicians using a 5mm hex socket key or hex bit driver. Ensure the mating threaded hole is clean and free of debris before installation. Apply appropriate thread preload per the assembly specification for Grade 10.9 fasteners. Do not mix metric and unified thread fasteners in the same tapped hole.