Abstract: A tamper resistant hasp having: a first member extending between a first inner end and a first outer end, the first member defining a first member outer boundary and has a mounting aperture located within the first member outer boundary; a second member that has: a first portion that extends between a second inner end and a joint end, the second inner end being pivotally coupled to the first inner end, the second member pivots relative to the first member so that in a first pivot position the first portion is against the first member and covers the mounting aperture, and in a second pivot position such that the mounting aperture is uncovered; and a second portion that extends away from the first portion at the joint end to a third end and having a shackle aperture located within the second portion outer boundary.