Model HS Portable Bolt-Tension Calibrator

1. Convert tool output to bolt-tension specs.

2. Set production preload standards.

3. Test 3/4” through 1-1/2" 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" size. Direct dial readings to 170,000 pounds of bolt tension within 1% accuracy show the preload delivered. Recommended minimum bolt tensions are plainly indicated on the gauge face. It can be clamped to a convenient column or bench.

The Model HS is also available with interchangeable bolt bushing and plate sets for each size bolt to be tested in a complete range through 1-1/2" bolt sizes. Adapters can be made for special applications.

If you want to learn more about using the Model HS to verify bolt tension, we offer a free Understanding Bolt Tension course, as well as Professional Skidmore Training that covers all aspects of using a Skidmore, including safe usage and customized solutions.