Heavy Duty Strap Hangers 84mm 3 Hole Nickel Plated pack 2 including screws An ideal hanger for heavier picture frames and mirrors The solid pressed steel D ring cannot come open and the wide flat strap is folded through it. The slot and two holes in the strap help easier levelling of the frame. The Strap Hanger style has been popular with framers and their customers for many years. Normally fitted in pairs, pictures can be hung on most hooks or screws in the wall. These strap hangers are 84mm long x 16mm wide. 3 holes are 3.7mm dia. Use 3.5mm pan head screws. The stamped D Ring has an opening 17mm x 16mm and its rim is 4mm wide. Steel is 1.4mm thick. Silver zinc plated. Not designed to be used with cord or wire.