BBI® 489142 Fully Threaded Carriage Bolt, 5/8-11, 3 in L Under Head, Low Carbon Steel, A Grade, Zinc CR+3

BBI® carriage bolt, fully threaded, measurement system: imperial, 5/8-11 thread, 3 in L under head, low carbon steel, A grade, zinc CR+3, 1.344 in dia head, 0.344 in neck, square neck, 0.642 in drive, UNC thread, square drive, material specification: ASTM A307, round head.