Value Collection 427716MSC Flange Bolt M12x1.75 45mm Grade 10.9

Product Description

The VALUE COLLECTION 427716MSC is a smooth flange bolt designed for metric fastening applications where a built-in bearing surface is needed without a separate washer. It features an M12 x 1.75 thread, a 45 mm length under head, and partial threading with 40 mm of threaded engagement. The integrated smooth flange measures 26.6 mm in diameter and distributes clamping load evenly across the joint surface. Manufactured from Grade 10.9 alloy steel with a phosphate and oil finish, this bolt delivers high tensile strength and corrosion resistance suitable for demanding mechanical assemblies. The hex drive accepts a 15.73 to 16 mm drive size, making it compatible with standard metric tooling.

This flange bolt is used in mechanical, industrial, and equipment assembly applications where metric fasteners are specified. The smooth flange style is common in automotive, machinery, and structural fabrication work where flush seating and load distribution matter. Partial threading leaves an unthreaded shank section near the head, which provides shear strength in bolted connections and prevents thread engagement in the grip area. This part is sold individually and conforms to DIN 6921 and DIN ISO 898-1 standards, making it appropriate for applications that require documented fastener compliance.

Key Features

• M12 x 1.75 metric thread with 40 mm of threaded length for reliable engagement
• Smooth flange diameter of 26.6 mm distributes clamping load without a separate washer
• Grade 10.9 alloy steel construction provides high tensile and proof load strength
• Phosphate and oil finish offers moderate corrosion and galling resistance
• Hex drive with 15.73 to 16 mm drive size fits standard metric sockets and wrenches
• Conforms to DIN 6921 and DIN ISO 898-1 for documented fastener compliance

Compatibility

Designed as a DIN 6921 compliant metric flange bolt for mechanical assemblies, industrial equipment, and structural applications requiring an M12 x 1.75 partially threaded smooth flange fastener.

Installation Notes

Installation is performed by mechanical technicians or millwrights using standard metric hand or power tools. Power down and de-energize any equipment before accessing fastened assemblies. Apply torque values per the applicable engineering specification or DIN ISO 898-1 grade requirements for Grade 10.9 fasteners — do not substitute torque values from other grades. Inspect threads and flange seating surface for damage before installation.