Hi Lionel, the standard way is to attach the staple to the door frame as it is narrower and then the hasp with the fold-over flap to the door. If you are using the heavy duty hasp & staples stock code T2000-T2050-T2150-T2200-T2250 or T2350 then you can use coach bolts as they provide a higher level of security and cannot be easily removed without drilling the domed heads off.