Multi Truss Hanger 47 x 167mm BPC Fixings Multi Truss Hanger 47 x 167mm Galvanised Steel. For Use In Heavy Duty Applications Such As Multiple Truss Units Main Trimmer Joists Purlin To Beam Connections Or Similar Situations Where Unusually Heavy Loads Occur. Manufactured From 1.5Mm Thick Galvanised Steel. Bolt Hole To Suit M12 Fixing Nail Holes 5Mm Diameter. Use 30 X 3.75Mm Sheradised Square Twisted Nails In All Pre-Punched Holes Together With Bolts In Multi Truss Hanger Range Where Required. Bearing Surface On All Multi-Truss Hangers Is 75Mm. Produced From Galvanised Steel To Bs En 10346:2009 + G275 As Standard.