5/16″-18 x 3/4″ Zinc Grade 5 Hex Washer Head Serrated Flange Bolts (10 pcs.)
Diameter: 5/16″ Length: 3/4″ Material: Steel Finish: Zinc Head Style: Hex Washer (1/2″ Wrench) Thread Size: 18 (Coarse) Thread Length: Full Hardness: Grade 5 Style: Serrated Type: Flange Bolt Box of 10. A flange bolt has a wide flange beneath the hex head of the bolt. Applied with a wrench.