Value Collection 643186PR Hex Head Cap Screw M10 X 1.25

Product Description

The VALUE COLLECTION 643186PR is a metric hex head cap screw designed for precision fastening applications requiring fine-thread engagement. Built to Grade 8.8 steel construction, this screw delivers reliable tensile strength in mechanical assemblies, machinery, and structural connections. The fully threaded shank provides maximum thread engagement over the entire 20 mm length under the head, making it well suited for through-hole and close-tolerance fastening. It meets DIN 961 and ISO 8676 standards, confirming dimensional accuracy and material consistency. Licensed trades and industrial maintenance professionals reach for Grade 8.8 hardware when standard Grade 4.8 or 5.8 fasteners are undersized for the load.

This screw is commonly used in general mechanical assembly, automotive, equipment manufacturing, and maintenance repair operations where metric fine-thread fasteners are specified. The M10 x 1.25 fine-thread pitch is frequently called out in European and Asian equipment where fine threads provide better vibration resistance and finer torque control than standard M10 x 1.5 coarse-thread variants. The uncoated bright finish suits indoor or controlled-environment installations where additional corrosion protection is not required.

Key Features

• Grade 8.8 steel construction for high tensile strength in demanding mechanical applications
• M10 x 1.25 fine-thread pitch for improved vibration resistance versus coarse-thread M10
• Fully threaded shank over the entire 20 mm length under the head for maximum thread engagement
• 17 mm hex drive size compatible with standard metric wrenches and sockets
• Meets DIN 961 and ISO 8676 dimensional and material standards
• Bright uncoated finish suitable for controlled-environment or indoor service

Compatibility

Designed as a standard metric fine-thread hex head cap screw conforming to DIN 961 and ISO 8676, suitable for any application specifying an M10 x 1.25 x 20 mm Grade 8.8 fully threaded hex cap screw.

Installation Notes

Install using a 17 mm open-end, box, or socket wrench; follow the torque specifications published in the equipment service manual or applicable fastener torque charts for Grade 8.8 M10 hardware. Always ensure mating threads are clean and free of debris before installation. Do not mix metric fine-thread and coarse-thread fasteners in the same threaded hole. Fastener installation in structural or safety-critical assemblies should be performed by qualified mechanical or maintenance technicians following applicable industry standards.