Billet Aluminum Universal Round Tube ClampUNIVERSAL Billet Aluminum Universal Round Tube Clamp Product #10005MC01301 10005MC02301 10005MC03301 10005MC04301 The DRT Motorsports Universal Round Tube Clamp (1. 500") is the perfect way to be able to mount and attach accessories to your round cage tube with distinct styling. These clamps are designed to fasten and secure tightly around the cage tube and provide an M10 attachment point. Made of custom designed aluminum extrusions in various sizes