Diameter: 3/8"
Length: 1-1/2"
Material: Steel
Finish: Zinc
Head Style: Hex Washer (9/16" Wrench)
Thread Size: 16 (Coarse)
Thread Length: Full
Hardness: Grade 5
Style: Serrated
Type: Flange Bolt

Box of 6.

A flange bolt has a wide flange beneath the hex head of the bolt. Applied with a wrench.