to reduce loading of those features of the bracket in order to be able to use the bracket for mounting to either a left hand or a right hand sash of the casement window there may be a first pivotal stop 113 a located at one end of the bracket 110 and a second pivotal stop 113 b located at the other end of the bracket each of the stops 113 a and 113 b of bracket 110 of the catch assembly 100 may have a u201c v u201d shaped cavity formed by a slanted surface 113 s fig8 of the stop which works for guiding automatic alignment of the first arm 120 when the catch assembly 100 is biased back towards the sash 11 and thereafter the stop 113 completely inhibits further rotation of the first arm 120 at the fully retracted position with respect to bracket 110 the first arm 120 is shown in detail in fig9 9c and may be an elongated thin plate member which may be formed of plastic metal or any other suitable material proximate to the first end 121 of the arm 120 may be a hole 123 usable for pivotal mounting of the arm to the hole 112 of bracket 110 hole 123 may be an eccentric or slotted hole through which the first arm 120 is riveted with the bracket 110 of catch assembly 100 via the rivet 159 it provides free movements of the first arm 120 in all directions when the first arm 120 retracts to the sash 11 when the catch assembly 100 is.