Value Collection 643539PS M4x0.7 Hex Cap Screw Grade 8.8

Product Description

The VALUE COLLECTION 643539PS is a metric hex head cap screw designed for general-purpose fastening in mechanical assemblies, equipment fabrication, and maintenance applications. This fully threaded fastener measures M4 x 0.70 thread pitch with a 12 mm length under head and a 7 mm hex drive. It is manufactured from Grade 8.8 steel with a bright, uncoated finish, conforming to DIN 933 and ISO 4017 standards. Grade 8.8 indicates medium-high tensile strength suitable for structural and mechanical fastening where a reliable, non-plated fastener is specified. Machinists, millwrights, equipment technicians, and maintenance professionals commonly use this size in light-to-medium duty assemblies.

This screw is appropriate for metric-spec assemblies across a wide range of industries, including HVAC equipment, light machinery, pump housings, electrical enclosures, and general fabrication. The fully threaded shank allows engagement along the entire fastener length, making it well suited for thinner materials and through-hole applications where maximum thread contact is required. The uncoated bright finish is standard for indoor or protected environments where corrosion resistance is not a primary concern.

Key Features

• M4 x 0.70 thread pitch, 12 mm length under head per DIN 933 and ISO 4017
• Fully threaded shank for maximum thread engagement in through-hole applications
• Grade 8.8 steel construction provides medium-high tensile strength
• 7 mm hex drive compatible with standard metric wrenches and sockets
• Bright, uncoated finish meets dimensional and material standards without added plating
• Sold individually; minimum order quantity of 100 units applies

Compatibility

Designed as a standard DIN 933 and ISO 4017 compliant metric hex head cap screw, suitable for any metric-threaded application specifying an M4 x 0.70 fastener with a 12 mm grip length and Grade 8.8 steel material.

Installation Notes

Installation is performed with a standard 7 mm metric wrench or socket. Always verify thread engagement depth and confirm the mating thread is M4 x 0.70 before driving the fastener. Do not use an impact driver without verifying torque limits for the application and mating material. Fastener replacement in load-bearing or pressure-containing assemblies should follow applicable equipment service documentation and relevant standards.