Value Collection 427369MSC M8 X 1.25 Flange Bolt 70 Mm

Product Description

The VALUE COLLECTION 427369MSC is a smooth flange bolt designed for metric fastening applications requiring high-strength clamping force. Built to Grade 10.9 alloy steel, this bolt delivers a minimum tensile strength suited for demanding mechanical and structural assemblies. The M8 x 1.25 thread with a 70 mm length under head and 30 mm threaded section makes it well suited for through-bolt applications where full thread engagement is not required. The integrated smooth flange distributes load across a wider bearing surface, reducing the need for a separate washer. A phosphate and oil finish provides baseline corrosion resistance for general shop and industrial use.

This fastener is used in mechanical assemblies, fabrication, and equipment maintenance across industrial, automotive, and general manufacturing settings. The hex drive accepts a 12.73 to 13 mm socket or wrench. Partial threading is appropriate for applications where the unthreaded shank must pass through a clearance hole before engaging a threaded receiver. Maintenance technicians, machinists, and fabricators working with metric hardware will find this bolt consistent with DIN 6921 and DIN ISO 898-1 standards.

Key Features

• Grade 10.9 alloy steel construction for high-strength fastening applications
• Smooth flange with 18 mm flange diameter distributes clamping load without a separate washer
• Partially threaded with 30 mm thread length, leaving an unthreaded shank for clearance-hole applications
• M8 x 1.25 metric thread with hex drive sized 12.73 to 13 mm
• Phosphate and oil finish for general corrosion and galling resistance
• Conforms to DIN 6921 and DIN ISO 898-1 fastener standards

Compatibility

Designed as a standard DIN 6921 metric flange bolt for use in any M8 x 1.25 threaded application requiring a smooth flange bearing surface and Grade 10.9 strength rating.

Installation Notes

Installation is performed by machinists, fabricators, or maintenance technicians using a 12.73 to 13 mm hex socket or open-end wrench. Always verify thread engagement depth in the receiving material meets minimum requirements before torquing. Do not substitute this partial-thread bolt in applications requiring full thread engagement along the entire fastener length. Follow applicable industry torque specifications for Grade 10.9 M8 fasteners as outlined in your project or equipment service documentation.