Cam portion = Aluminum Flange portion = unplated iron Flanges are designed to mate with 150# flange Flanges have the same bolt hole pattern as an ANSI 150# flange, the thickness may vary TabsPart Finder Size 1 2” male cam3” male cam4” male cam6” male cam8” Male cam Size 2 2” flange Result SKU: CAM2FL-M Weight: 2 lb Part Table 5 Items Part Size Size 2 Weight CAM2FL-MCAM2FL-M 2” male cam 2” flange 2 lb CAM3FL-MCAM3FL-M 3” male cam 3” flange 3 lb CAM4FL-MCAM4FL-M 4” male cam 4” flange 4 lb CAM6FL-MCAM6FL-M 6” male cam 6” Flange 5 lb CAM8FL-MCAM8FL-M 8” Male cam 8” Flange 22 lb