5/16-18x4-1/2" A307 Grade A Carriage Bolts Galvanized

Part Number: 31C450BCGAG
Diameter/Pitch: 5/16"-18
Length Under Head: 4-1/2"
Grade: Grade A
Finish: Hot Dip Galvanized
Coarse / Fine Threads: Coarse
Partial / Full Threads: Full
Square Width (Max): 0.324"