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Hi-Force imperial bolt tensioners include spring return (SBT), standard (STS), and sub-sea (STU) ranges plus hydraulic tensioner nuts (HTN). 22+ models for standard bolts from 1-1/4 inch to 4 inch diameter at up to 1500 bar.

Hi-Force Bolt Tensioners
Hi-Force imperial bolt tensioners include spring return (SBT), standard (STS), and sub-sea (STU) ranges plus hydraulic tensioner nuts (HTN). 22+ models for standard bolts from 1-1/4 inch to 4 inch diameter at up to 1500 bar.
| Range | Model Number | Bolt/Thread Size | Capacity (kN) | Effective Area (cm2) | Stroke (mm) | Weight (kg) | Quote |
|---|---|---|---|---|---|---|---|
| SBT | SBT2-125B1 | 1 1/4" | 457 | 30.5 | 15 | 4.0 | |
| SBT | SBT2-137B1 | 1 3/8" | 457 | 30.5 | 15 | 4.0 | |
| SBT | SBT2-150B1 | 1 1/2" | 457 | 30.5 | 15 | 4.0 | |
| SBT | SBT3-162B1 | 1 5/8" | 822 | 54.8 | 15 | 6.7 | |
| SBT | SBT3-175B1 | 1 3/4" | 822 | 54.8 | 15 | 6.7 | |
| SBT | SBT3-175B2 | 1 3/4" | 822 | 54.8 | 15 | 6.7 | |
| SBT | SBT3-187B1 | 1 7/8" | 822 | 54.8 | 15 | 6.7 | |
| SBT | SBT3-187B2 | 1 7/8" | 822 | 54.8 | 15 | 6.7 | |
| SBT | SBT3-200B2 | 2" | 822 | 54.8 | 15 | 6.7 | |
| SBT | SBT4-187B1 | 1 7/8" | 1264 | 84.3 | 15 | 11.0 | |
| SBT | SBT4-200B1 | 2" | 1264 | 84.3 | 15 | 11.0 | |
| SBT | SBT4-200B2 | 2" | 1264 | 84.3 | 15 | 11.0 | |
| SBT | SBT4-225B2 | 2 1/4" | 1264 | 84.3 | 15 | 11.0 | |
| SBT | SBT4-250B2 | 2 1/2" | 1264 | 84.3 | 15 | 11.0 | |
| SBT | SBT5-250B1 | 2 1/2" | 1833 | 122.2 | 15 | 16.5 | |
| SBT | SBT5-275B1 | 2 3/4" | 1833 | 122.2 | 15 | 16.5 | |
| SBT | SBT5-300B1 | 3" | 1833 | 122.2 | 15 | 16.5 | |
| SBT | SBT6-300B1 | 3" | 2649 | 176.6 | 15 | 24.0 | |
| SBT | SBT6-325B1 | 3 1/4" | 2649 | 176.6 | 15 | 24.0 | |
| SBT | SBT6-350B1 | 3 1/2" | 2649 | 176.6 | 15 | 24.0 | |
| SBT | SBT6-375B3 | 3 3/4" | 2649 | 176.6 | 15 | 24.0 | |
| SBT | SBT6-400B3 | 4" | 2649 | 176.6 | 15 | 24.0 | |
| STS | STS1-075B1 | 3/4" | 234 | 15.6 | 10 | 1.7 | |
| STS | STS1-087B1 | 7/8" | 234 | 15.6 | 10 | 1.7 | |
| STS | STS1-100B2 | 1" | 234 | 15.6 | 10 | 1.7 | |
| STS | STS1-112B2 | 1 1/8" | 234 | 15.6 | 10 | 1.7 | |
| STS | STS2-125B1 | 1 1/4" | 457 | 30.5 | 15 | 3.5 | |
| STS | STS2-137B1 | 1 3/8" | 457 | 30.5 | 15 | 3.5 | |
| STS | STS2-150B1 | 1 1/2" | 457 | 30.5 | 15 | 3.5 | |
| STS | STS3-162B1 | 1 5/8" | 822 | 54.8 | 15 | 6.1 | |
| STS | STS3-175B1 | 1 3/4" | 822 | 54.8 | 15 | 6.1 | |
| STS | STS3-175B2 | 1 3/4" | 822 | 54.8 | 15 | 6.1 | |
| STS | STS3-187B1 | 1 7/8" | 822 | 54.8 | 15 | 6.1 | |
| STS | STS3-187B2 | 1 7/8" | 822 | 54.8 | 15 | 6.1 | |
| STS | STS3-200B2 | 2" | 822 | 54.8 | 15 | 6.1 | |
| STS | STS4-187B1 | 1 7/8" | 1264 | 84.3 | 15 | 10.6 | |
| STS | STS4-200B1 | 2" | 1264 | 84.3 | 15 | 10.6 | |
| STS | STS4-200B2 | 2" | 1264 | 84.3 | 15 | 10.6 | |
| STS | STS4-225B2 | 2 1/4" | 1264 | 84.3 | 15 | 10.6 | |
| STS | STS4-250B2 | 2 1/2" | 1264 | 84.3 | 15 | 10.6 | |
| STS | STS5-250B1 | 2 1/2" | 1833 | 122.2 | 15 | 16.0 | |
| STS | STS5-275B1 | 2 3/4" | 1833 | 122.2 | 15 | 16.0 | |
| STS | STS5-300B1 | 3" | 1833 | 122.2 | 15 | 16.0 | |
| STS | STS6-300B1 | 3" | 2649 | 176.6 | 15 | 23.5 | |
| STS | STS6-325B1 | 3 1/4" | 2649 | 176.6 | 15 | 23.5 | |
| STS | STS6-350B1 | 3 1/2" | 2649 | 176.6 | 15 | 23.5 | |
| STS | STS6-375B3 | 3 3/4" | 2649 | 176.6 | 15 | 23.5 | |
| STS | STS6-400B3 | 4" | 2649 | 176.6 | 15 | 23.5 | |
| STU | STU1-100 | 1" - 8UN | 256 | 26.1 | 20 | 3.4 | |
| STU | STU1-112 | 1 1/8" - 8UN | 256 | 26.1 | 20 | 3.4 | |
| STU | STU2-125 | 1 1/4" - 8UN | 430 | 43.9 | 30 | 6.0 | |
| STU | STU2-137 | 1 3/8" - 8UN | 430 | 43.9 | 30 | 6.0 | |
| STU | STU3-150 | 1 1/2" - 8UN | 553 | 56.4 | 30 | 7.5 | |
| STU | STU3-162 | 1 5/8" - 8UN | 553 | 56.4 | 30 | 7.5 | |
| STU | STU4-175 | 1 3/4" - 8UN | 756 | 77.1 | 30 | 9.8 | |
| STU | STU4-187 | 1 7/8" - 8UN | 756 | 77.1 | 30 | 9.8 | |
| STU | STU5-200 | 2" - 8UN | 1168 | 119.1 | 30 | 14.5 | |
| STU | STU5-225 | 2 1/4" - 8UN | 1168 | 119.1 | 30 | 14.5 | |
| STU | STU6-250 | 2 1/2" - 8UN | 1649 | 168.1 | 30 | 22.8 | |
| STU | STU6-275 | 2 3/4" - 8UN | 1649 | 168.1 | 30 | 22.8 | |
| STU | STU7-300 | 3" - 8UN | 2483 | 253.2 | 30 | 35.6 | |
| STU | STU7-325 | 3 1/4" - 8UN | 2483 | 253.2 | 30 | 35.6 | |
| STU | STU7-350 | 3 1/2" - 8UN | 2483 | 253.2 | 30 | 35.6 | |
| HTN | HTN1-100 | 1" - 8 UN | 198 | 13.2 | 5 | 1.9 | |
| HTN | HTN2-112 | 1 1/8" - 8 UN | 216 | 14.4 | 5 | 2.0 | |
| HTN | HTN3-125 | 1 1/4" - 8 UN | 253 | 16.9 | 5 | 2.4 | |
| HTN | HTN4-137 | 1 3/8" - 8 UN | 304 | 20.4 | 5 | 2.7 | |
| HTN | HTN5-150 | 1 1/2" - 8 UN | 344 | 22.9 | 6 | 2.9 | |
| HTN | HTN6-162 | 1 5/8" - 8 UN | 398 | 26.5 | 6 | 3.5 | |
| HTN | HTN7-175 | 1 3/4" - 8 UN | 475 | 31.7 | 6 | 4.0 | |
| HTN | HTN8-187 | 1 7/8" - 8 UN | 501 | 33.4 | 6 | 4.2 | |
| HTN | HTN9-200 | 2" - 8 UN | 563 | 37.6 | 6 | 4.9 | |
| HTN | HTN10-225 | 2 1/4" - 8 UN | 746 | 49.8 | 8 | 6.4 | |
| HTN | HTN11-250 | 2 1/2" - 8 UN | 905 | 60.3 | 8 | 8.0 | |
| HTN | HTN12-275 | 2 3/4" - 8 UN | 1000 | 66.7 | 8 | 8.8 | |
| HTN | HTN13-300 | 3" - 8 UN | 1203 | 80.2 | 8 | 10.6 | |
| HTN | HTN14-325 | 3 1/4" - 8 UN | 1414 | 94.3 | 10 | 12.9 | |
| HTN | HTN15-350 | 3 1/2" - 8 UN | 1605 | 107 | 10 | 16.2 | |
| HTN | HTN16-375 | 3 3/4" - 8 UN | 1705 | 113.6 | 10 | 18.3 | |
| HTN | HTN17-400 | 4" - 8 UN | 1911 | 127.4 | 10 | 21.9 |