BBI® 489129 Undersized Carriage Bolt, 1/2-13, 8 in L Under Head, Low Carbon Steel, A Grade, Zinc CR+3

BBI® carriage bolt, undersized, measurement system: imperial, 1/2-13 thread, 8 in L under head, low carbon steel, A grade, zinc CR+3, 6 in thread length, material specification: ASTM A307.