American Lock A801, 8-3/4" Hidden Shackle Padlock Hasp American Lock A801 Hidden Shackle Padlock Hasp that fastens to lock Hasps can be used with Nos. A2500, A2010, A2001 or A2000 hidden shackle locks for maximum security Can be mounted directly to A2500, A2010, A2001 hidden shackle locks for maximum security and convenience