Master Lock® Tumbler Padlock, Rekeyable Pin, series: ProSeries®, Different Key, Solid Brass Body, 5/16 in Shackle dia, 1-3/16 in Shackle Height, 29/32 in Shackle Width, Hardened Boron Alloy Shackle, 1-3/4 in Body Width, Dual Ball. Master Lock® 6840D ProSeries® Rekeyable Pin Tumbler Padlock, Different Key, 5/16 in Shackle, Solid Brass Body