One Piece Pipe Clip Pipe Size (In.) 1-1/2 Tube Size (In.) 1-1/2 in Copper Tube Max Load (Lb.) 350 Material of Construction Copper Electro Plated Steel Bolt Size (In.) 3/8 Metal Detectable Yes For Vertical Or Horizontal Tubing Support Includes Captive Screw And Built In Nut