Value Collection 644519PS Hex Head Cap Screw M8x1.25 150mm

Product Description

The VALUE COLLECTION 644519PS is a metric hex head cap screw designed for general industrial fastening applications. This partially threaded fastener is manufactured to Grade 8.8 steel, indicating a tensile strength suitable for medium-to-high-load structural and mechanical assemblies. The M8 x 1.25 thread profile and 150 mm length under head make it a standard choice for through-bolted connections where a full grip length is required. A 13 mm hex drive allows installation with common wrenches and hex sockets. The uncoated bright finish is appropriate for interior or controlled-environment use where post-installation coating or plating will be applied.

This screw is suited for use in manufacturing, equipment assembly, fabrication shops, and maintenance applications where metric fasteners conforming to DIN 931 and ISO 4014 standards are specified. The partially threaded shank provides a smooth bearing surface through the joint material, which helps resist shear loads and improves clamping consistency. Machinists, millwrights, and mechanical assemblers typically specify this type of fastener when working from metric engineering drawings that call out DIN or ISO fastener standards.

Key Features

• Grade 8.8 steel construction for reliable tensile and proof load performance in structural assemblies
• Partially threaded shank per DIN 931 and ISO 4014 for shear resistance and consistent clamping
• M8 x 1.25 metric thread profile with 150 mm length under head
• 13 mm hex drive compatible with standard metric wrenches and sockets
• Bright uncoated finish suitable for assemblies requiring secondary coating or used in dry indoor environments

Compatibility

Designed as an OEM-style and general-purpose replacement or stock fastener for metric bolted assemblies requiring a DIN 931 or ISO 4014 compliant M8 x 1.25 partially threaded hex head cap screw.

Installation Notes

Installation is performed by machinists, millwrights, or mechanical assemblers using a standard 13 mm open-end, box, or socket wrench. Always ensure mating threads are clean and free of debris before installation. Follow the assembly drawing or equipment manufacturer torque specification for Grade 8.8 M8 fasteners — no torque value is stated in this product listing. Do not mix metric and unified thread fasteners in the same joint.