Introduction 2 flange double hole pins with a diameter of 1-1/8'', suitable for bolt holes ranging from 3/8'' to 1.0 '' Feature High quality: 304 stainless steel, beautiful & smooth appearance, corrosion resistance, long service life, 100% brand new Advantages: Ergonomic design, perfect double hole pin flange aligner design, & well machined threads Installation: The product has a simple structure & is easy to install. The detachable threads can adapt to different lengths. By using this double hole flange positioning pin set, you can easily install & level the pipeline.