Thread, Nut, and Stud Bolt size for Heavy Hex Sizes - Metric

The profiles for the most common Heavy Hex Metric thread pitch on a bolt or nut can be found on the back of the HexSizer. This version is for metric-heavy hex sizes which you would find in a refinery, power plant, or on a reactor. With this tool, you will be able to measure across flats, measure from one flat, or identify the circumference of a stud bolt and check the thread pitch.