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M12 SERRATED Flange Bolt

Class 10.9 Steel

DIN 6921 / 16mm Wrench

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Detail & Specs

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M12X1.75 Class 10.9 Steel SERRATED DIN 6921 Metric Hex Flange Bolts 

Wrench Size: 16mm

The serrations on the bottom of the flange provide a locking action, digging into the parent material when tightened down. Serrated flange bolts are meant to permanently mar the material they are installed against.

The non-indented head prevents grease and dirt from accumulating on the head, providing a higher quality finish and appearance.

Class 10.9 flange bolts are considered hardened, providing a high strength, high tensile fastening solution. Pair with Class 10 or stronger nuts.

Hex head flange bolts are available in full thread or partial thread configurations. Partially threaded hex bolts have an unthreaded length under the head that is stronger than the threaded portion of the bolt. The unthreaded / threaded length dimensions vary by specification. The entire length of a fully threaded flange bolt is meant to engage with a tapped hole.

Flange bolts can be used with many different styles of locking and non-locking nuts to clamp tightly to whatever the bolt is being used to secure. A wrench is used to install and tighten hex flanged bolts.

Also known as
External hex drive flange bolt, one-piece flange bolt for mechanical applications, automotive serrated flange screw, external hex bolt with integral washer for 
vehicle frames.