then slid squarely onto the rafter truss from the underside so that the friction plate 31 abuts the under surface of the rafter truss the u strap 29 is positioned so that the bolt holes 36 in the u strap line up with the bolt hole 37 in the sole plate the u strap is then connected to the sole plate by passing the bolt 34 through the u strap and the sole plate and securing it with the nut 38 and washer 39 the sole plate is then tapped on the rear surface 40 in order to tension the clamping mechanism of the u strap and friction plate a small locating clout 41 is passed through the aperture 42 in the u strap to assist in locating the u strap and friction plate in the desired position the second u strap 30 and friction plate 32 is then slid squarely onto the rafter truss from the underside so that the friction plate 32 abuts the under surface of the rafter truss this second u strap 30 is positioned so that the bolt holes 43 in the u strap line up with the bolt hole 44 in the sole plate the u strap 30 is then connected to the sole plate by passing the bolt 35 through the u strap and sole plate and securing it in place with the nut 45 and washer 46 to tension the clamping mechanism of the second u strap.