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2. Preload control - Wikipedia

   en.wikipedia.org/wiki/Preload_control

   Multiple techniques exist for preload control to ensure that the tension in the bolt is close to the one specified in the design (some bolt-to-bolt statistical variations are inevitable): [1] torque-controlled tightening is a simple and most popular approach: the fastener is tightened until the torque limit is reached.

3. Multi-jackbolt tensioner - Wikipedia

   en.wikipedia.org/wiki/Multi-jackbolt_tensioner

   Multi-jackbolt tensioners (MJTs), registered under the trademark Superbolt or Supernut, are designed to decrease the torque required to tighten large bolted joints. One of the major problems associated with traditional bolt tightening methods is as the diameter of the bolt increases, the amount of torque required to tighten it increases in the third power of the diameter. [1]

4. Preload (engineering) - Wikipedia

   en.wikipedia.org/wiki/Preload_(engineering)

   The most common usage is to describe the load applied to a fastener as a result of its being installed, i.e., before any external loads are applied (e.g., tightening the nut on a bolt). Preload in such cases is important for several reasons.

5. Bolted joint - Wikipedia

   en.wikipedia.org/wiki/Bolted_joint

   The preload target can be achieved by a variety of methods: applying a measured torque to the bolt, measuring bolt extension, heating to expand the bolt then turning the nut down, torquing the bolt to the yield point, testing ultrasonically, or by applying a certain number of degrees of relative rotation of the threaded components. Each method ...

6. How to Tighten Your Loose Skin After Weight Loss - AOL

   www.aol.com/tighten-loose-skin-weight-loss...

   Rapid Weight Loss. Loose skin due to rapid weight loss is usually seen in people who undergo bariatric surgery for large amounts of weight loss (more than 100 pounds). About 70 percent of people ...

7. Direct tension indicator - Wikipedia

   en.wikipedia.org/wiki/Direct_tension_indicator

   DTIs within the RCSC specification section 8.2.4 are described thus: "ASTM F959 direct tension indicators are recognized in this Specification as a bolt-tension-indicating device. Direct tension indicators are hardened washer shaped devices incorporating small arch-like protrusions on the bearing surface that are designed to deform in a ...