Value Collection -42718-1 M4 Hex Socket Cap Screw 50mm

Product Description

The VALUE COLLECTION -42718-1 is a metric hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, tooling, and industrial equipment. Sized M4 x 0.70 with a 50 mm length under head, this cap screw is partially threaded and features a recessed hex drive for torquing with standard Allen keys or hex bit drivers. Manufactured from grade 12.9 alloy steel with a black oxide finish, it delivers high tensile strength and moderate corrosion resistance suitable for interior and controlled-environment use. Machinists, millwrights, and maintenance technicians are the typical installers.

This screw is suited for precision mechanical assemblies, machine frames, jigs, fixtures, and equipment panels where a flush or low-profile head profile and high clamp load are required. The M4 x 0.70 thread is a standard metric coarse pitch, widely used in light machinery and instrumentation. The black oxide coating reduces surface friction and provides mild protection against oxidation in dry or lightly oiled environments. Sold in minimum order quantities of 50 pieces per order.

Key Features

• Grade 12.9 alloy steel construction for high tensile and yield strength
• Black oxide finish for mild corrosion resistance and reduced surface friction
• M4 x 0.70 metric coarse thread, 50 mm length under head
• Partially threaded shank for accurate shoulder location in assemblies
• Hex socket drive compatible with standard Allen keys and hex bit drivers
• Conforms to DIN 912 and ISO 898-1 fastener standards

Compatibility

Designed as a standard DIN 912 metric hex socket cap screw for use in any M4 x 0.70 threaded application requiring a grade 12.9 fastener with a 50 mm length under head.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a correctly sized hex key or Allen driver. Always verify thread engagement depth and ensure mating threads are clean and free of debris before installation. Do not exceed the rated clamp load for grade 12.9 hardware as specified in applicable machinery or equipment documentation. Black oxide finish is not a substitute for anti-corrosion coatings in wet or outdoor environments.