Base Unit Model HS Bolt Take our FREE course for

Take our FREE course for more information on the role of plates in bolt testing:

This TC bushing accepts 1-1/8" diameter bolts and allows testing of 3-1/4" and longer bolts

MZ Short Bolt Plate for testing 3/4" diameter bolts

the latest innovation from Skidmore-Wilhelm

Take our FREE course for more information on the role of plates and bushings in bolt testing:

Base Unit Model HS Bolt Take our FREE course forThe Model HS Manual is available for download! Model HS Portable Bolt Tension Calibrator Convert tool output to bolt tension specs Set production preload standards Tests 3 4 through 1 1 2 inch high strength bolts to 170,000 pound preloads The Model HS is a highly reliable direct action hydraulic load cell instrument designed for use with high strength bolts through 1 1 2 inch size. Direct dial readings to 170,000 pounds of bolt tension within 1%