23 have holes 29 and a horizontally elongated slot 31 for receiving a screw or other fastener 32 the extended wall 28 has a second set of holes 33 and a horizontally elongated slot 34 below the first mentioned holes 29 and slot 31 the vertically extending portion sometimes simply u201c vertical portion u201d 22 of the bracket 18 has two sections or parts 36 37 separated by a bend line made by a series of vertical aligned slots or apertures 38 the presence of the apertures 38 leaves small spaced land areas 39 which are relatively weak along the line of the apertures in resistance to bending the plane of one section 37 relative to the other 36 as a result a low force preferably even without hand tools applied by the installer is all that is required to locate the section 37 in a plane perpendicular or otherwise relative to the other section 36 preferably the bracket 18 is manufactured with both sections 36 37 of the vertical portion 22 coplanar so that the bracket occupies a minimum space when packed and shipped with identical brackets 18 weakening at the bend line allows the installer to ordinarily bend the section 37 to an angle corresponding to that at which the grid runner to which it is to be attached intersects the wall 10 while this angle is most often a right angle it can be essentially any other angle with reference to fig3 it will be understood that the inverted channel 23 is dimensioned to seat on the sides and upper face as well as to support under one side of the bulb of a grid runner bulb 15 of a.