Carbon steel made Din Carriage Bolts have been developed as per ANSI or DIN or ASTM norms. Size of such bolts ranges between 6 m to 36 m. Environment friendly zinc plating technique has been used to treat their surface. These are rust and wear proof. Provided Din Carriage Bolts are chemical proof and have accurate diameter. These are tear protected and can resist damaging effects of acid. Quality of these accessories has been determined on the basis of salt spray test, hardness level and torque testing.