The abus 37rk80mm granit plus solid steel closed shackle disc cylinder padlocks offer the highest protection against manipulation the cylinder is inserted from the top offering optimum drill and pull resistance 8 tonne pull resistance the body and 14mm shackle are both made from hardened alloy steel with a cataphoretic coating and rustfree components which give 40 years of corrosion protection the closed shackle features an integral shackle guard to protect the shackle from attack with tools all