edge of section 37 in the preferred embodiment shown in fig6 and 7 the strap 36 is stamped out to have a mirror image trapezoid portion 200 the mirror image trapezoid portion 200 is folded over as shown in fig7 this allows the tubular base 39 to reinforce the lower end of the trapezoid section 37 in an alternative embodiment shown in fig8 and 9 the strap 36 is stamped out to have a tapered flange 210 extending from the trapezoid section 37 the tapered flange 210 is rolled upon itself to form the tubular base 212 which reinforces the lower end of the trapezoid section 37 in the third alternative embodiment shown in fig1 and 11 the strap 36 is stamped out to have a mirror image 220 of the entire strap the mirror image 220 is folded over onto the strap 36 to form a tubular end 222 the tubular end reinforces the lower end of the trapezoid section 37 as shown in fig1 and 13 the strap 36 of the fourth alternative embodiment is stamped out to have a mirror image trapezoid 230 and a further mirror image 232 of the strap 36 and the additional trapezoid 230 the mirror image 232 is folded into a substantially 34 w 34 shape to reinforce the lower end of the trapezoid section 37 as shown in fig1 the fastening straps 36 will secure the roof truss member 50 to.