Pryda Mitre Plate 78 x 126mm 45 Degree Left And Right Plates MT15Pryda Mitre Plate 78 x 126mm 45 Degree Left And Right Plates Uses Pryda Mitre Plates are used for connecting creeper trusses to hip trusses Features Fast Pre bent to suit common 45 degree angle connections on both the bottom and top cord. Strong 1. 0mm G300 Galvanised Steel. Versatile Can also be used with rafters and come with a left and right hand version to pick up the creeper from both sides of the hip.