type nut so as to insure maintenance of the locking pin or bolt 20 in the intended position as shown in fig1 and 3 when in the clamped position the two segments 12 and 14 are disposed in spaced apart relation to one another so as to define a receiving space 26 therebetween the receiving space is applicably dimensioned and configured into a substantially congruent configuration relative to the tubular members 28 of a skid assembly generally indicated as 27 affixed to the under surface of a helicopter represented in phantom lines in fig5 as 30 the clamped or closed position of the clamp assembly 10 is such that the two segments 12 and 14 must be first moved to what may be referred to as an open position and pivotal relative to one another such that the interior surfaces within the space 26 as 12 39 and 14 39 substantially surround and effectively engage the outer surfaces of the tubular skid member 28 as perhaps best shown in fig6 as pictured in fig4 a 5 and 6 the purpose of the clamp assembly is to removably mount in a secure reliable fashion a load supporting structure generally indicated as 33 on the under carriage and more specifically on the skid assembly 27 associated with the helicopter 30 in the embodiment shown the load supporting structure 33 is in the form of a panel sheet or like member having an aperture means generally indicated as 34 and 36 see fig4 and 4a such that a keeper assembly generally indicated as 38 will pass through the load supporting structure 33 into engagement with the clamp body including each of the clamp segments 12 and 14 more specifically the keeper.