Product Name: Carriage bolt Range: DIN603, ANSI Diameter from 1/4" to 3/4" (M6 to M20), length from Product Name: Carriage boltRange:DIN603, ANSIDiameter from 1/4" to 3/4" (M6 to M20), length from 1/2" to 12" (12mm to 300mm)Coarse thread Grade 307A and Grade 5 Material: Carbon steelFinish: Plain, Zinc Plated, Hot Dipped Galvanized Carriage Bolt