Add Wish List Quick view + Quick Add Kryptonite Kryptonite New York Fahgettaboudit Chain/Disc Lock Kryptonite New York Fahgettaboudit Chain/Disc Lock 14mm six-sided chain links made of 3t HARDENED MANGANESE STEEL for ultimate strength. Note: Measure your door's backset, cross bore and thickness... MSRP: $179.00 Was: Now: $124.95 + Quick Add