Value Collection 644553PR M4 X 0.70 X 25 Mm Hex Cap Screw

Product Description

The VALUE COLLECTION 644553PR is a metric hex head cap screw designed for general fastening applications in machine assembly, fabrication, and maintenance work. It features an M4 x 0.70 thread profile with a 25 mm length under head and partial threading along the shank. Manufactured from Grade 8.8 steel with a bright uncoated finish, this fastener meets DIN 931 and ISO 4014 standards. The 7 mm hex drive allows installation with standard hex wrenches or sockets. Grade 8.8 indicates medium-high tensile strength, making it suitable for structural and mechanical connections where reliable clamping force is required.

This screw is used across a wide range of industries including HVAC equipment assembly, electrical enclosure fabrication, plumbing fixture mounting, and general metalwork. It is appropriate for residential and light commercial applications wherever a metric M4 partially threaded fastener is specified. The partial thread design allows the unthreaded shank to bear shear loads while the threaded section provides clamping engagement. Installers working with metric hardware and machinery will find this fastener consistent with DIN and ISO dimensional standards.

Key Features

• M4 x 0.70 metric thread with 25 mm length under head
• Partial threading per DIN 931 and ISO 4014 standards
• Grade 8.8 steel construction for medium-high tensile strength
• Bright uncoated finish suitable for dry or protected indoor environments
• 7 mm hex drive compatible with standard metric wrenches and sockets

Compatibility

Designed as a standard DIN 931 and ISO 4014 compliant metric hex head cap screw for use wherever an M4 x 0.70 partially threaded fastener is specified in metric-standard assemblies.

Installation Notes

Installation is performed with a 7 mm open-end wrench, box wrench, or socket driver. Always confirm thread engagement in the mating part before applying final torque to avoid cross-threading. For assemblies subject to vibration, consider a lock washer or thread-locking compound per the equipment manufacturer's specifications. Ensure mating tapped holes or nuts conform to M4 x 0.70 metric thread standards for proper fit.