Detailed Product Description strut clamp(rigid pipe clamps,EMT pipe clamps,clamps)Type Size (u n i t: inch )Part # O.D.Series Tubing Clamps3/8" ~ 6"MT-1037, ~ MT-1600O.D.& Copper Tube Isolating3/8", 4-1/8"MKC--10037, ~MKC-10412All items are specialized in supplying for North-America's marketsMaterial: Metal part:Standard carbon steel,conforming to ASTM A36, A575, A576, A635; Cushion part: TPR; ...