Value Collection 643052PR M8x1.25x50mm Hex Cap Screw 8.8

Product Description

The VALUE COLLECTION 643052PR is a metric hex head cap screw designed for general fastening applications in mechanical, industrial, and trade assembly work. It features an M8 x 1.25 thread with a 50 mm length under head and is fully threaded along its entire shaft. Manufactured from Grade 8.8 steel with a bright uncoated finish, this screw delivers reliable tensile strength for medium-duty fastening without the added cost of plating or coating. The 13 mm hex drive size is standard across common metric wrenches and sockets. This fastener conforms to DIN 933 and ISO 4017 dimensional standards, making it a straightforward drop-in fit for applications built to those specifications.

This screw is suited for use in light- to medium-duty structural and mechanical assemblies, including equipment frames, machinery mounting, pipe supports, and general fabrication. The fully threaded design allows engagement along the full fastener length, which is useful when clamping thin materials or when thread engagement depth is limited. It is commonly used by millwrights, pipefitters, maintenance mechanics, and general contractors working with metric-dimensioned assemblies. The uncoated finish is appropriate for dry indoor environments or applications where a specific coating or plating will be applied after assembly.

Key Features

• M8 x 1.25 metric thread with 50 mm length under head
• Fully threaded shaft for maximum engagement flexibility
• Grade 8.8 steel construction for medium-duty tensile and shear strength
• 13 mm hex drive compatible with standard metric wrenches and sockets
• Conforms to DIN 933 and ISO 4017 dimensional standards
• Bright uncoated finish suitable for dry or secondary-coated applications

Compatibility

Designed as an OEM-style metric fastener replacement or new-installation component for any application specifying an M8 x 1.25 x 50 mm fully threaded hex cap screw per DIN 933 or ISO 4017.

Installation Notes

Use a 13 mm open-end, box-end, or socket wrench to drive this fastener to the torque value specified by the equipment manufacturer or applicable assembly standard. Always de-energize, depressurize, or isolate the assembly before performing fastener service on mechanical systems. Grade 8.8 fasteners should not be substituted in applications that specify higher-grade hardware without engineering approval. Avoid over-torquing, which can yield the fastener shank and compromise clamp load.