PACLOCK’s 2173S Series Padlock, Buy America Act Compliant, Flat Back w/Tapped Holes Puck Lock, Stainless Steel, High Security 6-Pin Cylinder, Unique Lock-to-Hasp fastening design means you’ll never lose your lock again! The PAC-BAND, a field-replaceable silicone cover, also keeps dirt, grime, and other damaging elements out of the cylinder.