Value Collection 427320MSC M8 X 1.25 Flange Bolt 45mm

Product Description

The VALUE COLLECTION 427320MSC is a smooth flange bolt designed for metric fastening applications requiring a broader bearing surface without a separate washer. Sized at M8 x 1.25 with a 45 mm length under head, this partially threaded bolt provides 30 mm of thread engagement and an 18 mm smooth flange diameter. Manufactured from Grade 10.9 alloy steel with a phosphate and oil finish, it delivers high tensile strength and corrosion resistance suited for demanding mechanical and structural assemblies. A hex drive accepts a 12.73 to 13.00 mm socket or wrench. It conforms to DIN 6921 and DIN ISO 898-1 standards.

This bolt is used in industrial, automotive, and mechanical applications where a flange-style fastener is specified. The smooth flange distributes clamping load evenly, reducing the need for a flat washer in many standard assemblies. Partial threading preserves shank strength in shear-loaded joints. It is commonly installed by machinists, maintenance technicians, and assembly professionals working with metric-spec equipment, fixtures, and fabricated structures. Minimum order quantity is 100 pieces; each package contains 1 bolt.

Key Features

• M8 x 1.25 metric thread with 30 mm thread length and 45 mm length under head
• Smooth 18 mm flange diameter distributes load without a separate washer
• Grade 10.9 alloy steel for high tensile strength in structural applications
• Phosphate and oil finish provides corrosion and wear resistance
• Partially threaded shank retains shear strength along the bolt body
• Conforms to DIN 6921 and DIN ISO 898-1 fastener standards

Compatibility

Designed as a DIN 6921 metric flange bolt for use in assemblies specifying M8 x 1.25 partially threaded smooth flange fasteners per DIN ISO 898-1 Grade 10.9 requirements.

Installation Notes

Installation should be performed by a qualified technician familiar with metric fastener torque specifications for Grade 10.9 hardware. Use a 12.73 to 13.00 mm hex socket or open-end wrench for proper drive engagement. Always verify thread pitch and hole preparation before installation to avoid cross-threading. Do not substitute this bolt in applications specifying a serrated flange, as flange type affects clamp load distribution.