Origin: ImportedAlso know as a coach bolt or round head square neck bolt, carriage bolts are intended for use through iron strengthening plates on either side of a wooden beamIt is commonplace to use them into bare timberCarriage bolts have a squared section under their round head that grip to prevent rotationBody Diameter: 0.678 - 0.768 Inch Diameter: 3/4 Inch Finish: Plain Grade: F911 Head Diameter: 1.469 - 1.594 Inch Head Height: 0.375 - 0.406 Inch Head Height Max: .406 Head Style: Round Industry Standard: ASME/ANSI B18.12 Item: Shaker Screen Bolts Length: 4-1/2 Inch Material: Alloy Steel Measurement: Inch Neck Type: Square Origin: Imported Specification: ASME/ANSI B18.12 Square Depth: 0.375 - 0.406 Inch Square Width: 0.741 - 0.768 Inch Tensile Strength : 180000 psi Thread Length: 4-1/2 Inch Thread Type: Coarse Threads Per Inch: 10 Type: Full Threaded 
