The wire clamp TG 245 M8/M10 is used to make cross connections to pipes and ducts and is suitable for various pipe diameters. The first size (A) is the first bend (where the plate sits). Size B is the second bend of the wire bracket. Note: the 2453877 and 2453899 both have an M8 threaded board, the threaded clamp 2453951 has M10 thread.