Check the listing for details. MASTER LOCK 40KAD Keyed Padlock, 3/4 in,Round,Silver 4YH18. Condition: New. Listed at 25.95 USD. Padlock, Shackle Dia. 3/8 in, Shackle Height 5/8 in, Shackle Width 3/4 in, Shackle Material Steel, Body Width 2 3/4 in, Body Thickness 7/8 in, Body Material Stainless Steel, Number of Bumpers 0, Number of Pins 4 Pin, Key Type Alike, Control Key Registration Required No, Opens with Key No. 501, Body Color Silver, Body Dia. 2 3/4 in, Keyway Type Master K1, Weather Resistant Yes, High Security No, Interchangeable Core No, Padlock Body Shape Disc, Rekeyable No, Shackle Type Partially Hidden Shackle These stainless steel lock body padlocks have a disc shape that helps prevent it from being forced open. They're corrosion resistant, so they can be used both indoors and outdoors. These padlocks have a partially hidden shackle that protects against cutting and smashing. They're keyed alike, so all locks in the set open with the same key.