A Core deposit is a form of deposit you pay until returning your old part. If you don't have the core at the time of purchase, you must pay the core charge. That charge is refunded to you when you return the core.
The only padlock that will open with your car key, BOLT Padlocks feature a 2″ hardened, zinc-nickel plated shackle, solid zinc core, automotive grade cylinder with patented 6 plate-tumbler sidebar to prevent picking and bumping, a stainless steel lock shutter to keep out dirt and moisture, and a rugged weather resistant jacket to protect your gear. BOLT Padlocks are made in the USA.