Skidmore Wilhelm Model HS Bolt Tester

The Skidmore Wilhelm Model HS Bolt Tester unit is designed for larger bolt sizes (1" to 1 ½" and 27MM to 42MM).

 

The main considerations when choosing the proper calibrator are first, the size of the bolt in diametre and length that you will be testing, and second, the type of bolt head (standard, heavy, hex or tension control) You will need to purchase a plate for each diametre of bolt you will be testing and a bushing for each diametre and each type.