mounting holes 316a 316n and deformed stiffeners 320 322 326 and 328 the angle mount clip 300 is a modification of the deflection slide clip 10 which accommodates vertical movement of the primary structure with angled members as shown in fig1 the angle member 304 includes a planar member 308 bent at and aligned at a right angle about bend axis 310 to a planar member 312 the plate member 302 includes a vertically aligned slotted hole 314 and a plurality of holes 318a 318n suitable for attachment by various hardware means known in the art planar member 312 includes a plurality of holes 316a 316n for suitable attachment to a concrete slab 224 or any specified material in the primary structure deformed stiffeners 320 and 322 align horizontally along and between planar member 308 and 312 to increase its lateral load carrying capabilities the plate member 302 includes a central planar area 338 with a slotted hole 314 vertically aligned along the central planar area 338 and upper and lower planar areas 340 and 342 respectively offset from the planar area 338 as also illustrated in fig9 a plurality of attachment holes 318a 318n align about the plate member 302 for securing plate member 302 to a stud or other support beam a large head rivet 344 and spring washers 346 and 348 slidingly secure angle member 304 to plate member 302 having the slotted hole 314 located on plate member 302 allows angle member 304 to be pivotally engaged between various angled concrete slabs or other suitable materials and the primary structure the vertical alignment of slotted hole 314 also allows for the angle mount clip 300 to accommodate any vertical.