Value Collection 426991MSC M5 Smooth Flange Bolt Grade 10.9

Product Description

The VALUE COLLECTION 426991MSC is a smooth flange bolt designed for metric fastening applications requiring high clamping strength and a clean bearing surface. Built to Grade 10.9 alloy steel, this bolt delivers tensile strength suited for demanding mechanical and structural assemblies. The M5 x 0.8 thread profile with a 10 mm length under head makes it well suited for compact fastening points where precise thread engagement matters. A phosphate and oil finish provides corrosion resistance in typical shop and field environments. The smooth flange eliminates the need for a separate washer, distributing load evenly across the flange face. Licensed contractors, machinists, and maintenance technicians working with metric hardware will find this bolt a straightforward fit for production and repair work.

This bolt is used in metric fastening applications across industrial equipment, machinery, and mechanical assemblies where a low-profile, washer-style flange head is required. The fully threaded M5 shank with a 0.8 mm pitch is standard in a wide range of OEM and aftermarket assemblies. It is appropriate for residential and light commercial mechanical equipment as well as heavier industrial machinery where Grade 10.9 strength class is specified. Technicians working on HVAC equipment frames, pump housings, motor mounts, and similar metal assemblies will encounter this thread size and configuration frequently.

Key Features

• Grade 10.9 alloy steel construction for high tensile and proof load requirements
• Smooth flange head with 11.8 mm flange diameter eliminates the need for a separate washer
• Fully threaded M5 x 0.8 shank with 10 mm length under head for maximum thread engagement in thin stock
• Phosphate and oil finish provides baseline corrosion and wear resistance
• Hex drive with 7.78 to 8.00 mm drive size for standard metric tooling
• Manufactured to DIN 6921 and DIN ISO 898-1 standards for dimensional and mechanical consistency

Compatibility

Designed as an OEM-style metric replacement fastener for assemblies specifying an M5 x 0.8 smooth flange bolt at Grade 10.9 per DIN 6921.

Installation Notes

Installation is performed by machinists, millwrights, or qualified maintenance technicians using standard metric hex tooling. Confirm mating thread condition and clearance hole diameter before installation. Do not mix metric and unified thread fasteners in the same assembly. Follow applicable torque specifications from the equipment manufacturer for Grade 10.9 M5 fasteners, as no torque value was provided with this part.