... .1A45031042.4A45041048.3A45051050.810/12/12.9mm Flat Crossbar Holder;10mm Radius Crossbar Holder: Ø33.7/38.1/42.4/48.3 ... /50.8mm;12mm Radius Crossbar Holder: Ø33.7/38.1/42.4/48.3/50. ... 8mm;12.9mm Radius Crossbar Holder: Ø33.7/38.1/42.4/48.3/50.8mmWe ... wall bracket, end cap, tube base, flange, elbow, tee, rail support, crossbar holder, wall spider, also we can supply the whole set ...