Munsen Bossed Pipe Clip for 40 NB Pipe (49 mm Pipe OD) T316 Marine Grade Stainless Steel With Fire Retardant Rubber Sometimes called Munsen rings, bossed pipe clamps are very similar to a two bolt pipe clip, but with a threaded boss attached. The threaded boss allows the pipe clamp to be fixed to a base plate via a length of studding. The added advantage is the matrix – connect multiple clamps in different orientations allows for great flexibility. Developed to accommodate the many different types of pipe support designs which have proven expensive to adopt in stainless steel. The unique design enables a multitude of design options These clamps can be used to clamp, guide or hang pipes in position with a minimum of basic components. Supplied with one half internally thread hole and a set screw with shake-proof washer, perfect for ease of assembly especially in restricted spaces Dimensions: Pipe Size: 40 NB (Nominal Bore) Pipe Outside Diamter: 49 mm D - Inside Diameter of Bare Metal