Value Collection 643040PS M8x1.25x30 Hex Cap Screw 8.8

Product Description

The VALUE COLLECTION 643040PS is a metric hex head cap screw designed for general mechanical fastening applications. Manufactured from Grade 8.8 steel with a bright, uncoated finish, this fully threaded fastener meets DIN 933 and ISO 4017 standards. The M8 x 1.25 thread pitch and 30 mm length under head make it a common choice in machinery assembly, equipment fabrication, and structural connections where a reliable metric fastener is required. The 13 mm hex drive size is compatible with standard metric wrenches and sockets. Grade 8.8 designation indicates a medium-high tensile strength carbon steel construction suitable for a wide range of industrial and mechanical applications.

This screw is suited for use in light to medium-duty mechanical assemblies, manufacturing fixtures, and equipment maintenance across industrial, commercial, and trade settings. Its fully threaded shank provides consistent thread engagement along the full length under the head, making it appropriate for through-bolt applications and close-tolerance assemblies. Machinists, millwrights, pipefitters, and general maintenance technicians commonly install this fastener type when working with metric-spec equipment.

Key Features

• M8 x 1.25 thread size with 30 mm length under head for precise metric fitment
• Grade 8.8 steel construction provides medium-high tensile strength for demanding assemblies
• Fully threaded shank per DIN 933 and ISO 4017 standards
• 13 mm hex drive compatible with standard metric wrenches and sockets
• Bright, uncoated finish suitable for applications where coating is not required or will be applied post-installation

Compatibility

Designed as a standard metric hex head cap screw conforming to DIN 933 and ISO 4017, suitable for use in any application calling for an M8 x 1.25 x 30 mm Grade 8.8 fully threaded fastener.

Installation Notes

Installation should be performed using a properly sized 13 mm metric wrench or socket. Apply appropriate torque per the assembly specification for Grade 8.8 M8 fasteners as defined by the equipment manufacturer or applicable engineering standard. Inspect threads for damage before installation. Uncoated fasteners may require a thread lubricant or anti-seize compound depending on the application environment and material being fastened.