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2. Chuck (engineering) - Wikipedia

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

   A chuck is a specialized type of clamp used to hold an object with radial symmetry, especially a cylinder. In a drill, a mill and a transmission, a chuck holds the rotating tool; in a lathe, it holds the rotating workpiece. [1] Chucks commonly use jaws to hold the tool or workpiece.

3. Seatpost - Wikipedia

   en.wikipedia.org/wiki/Seatpost

   Whether integrated or separate, the seatpost bolt can have a simple nut, can be an Allen bolt, or can include a quick-release mechanism, with a handle that releases the clamp without tools. [9] A quick-release allows easy height adjustment of the seat, though increases the risk of seat theft unless it is also used to detach the seat when parking.

4. Quick release skewer - Wikipedia

   en.wikipedia.org/wiki/Quick_release_skewer

   A quick release skewer is a mechanism for attaching a wheel to a bicycle. It consists of a rod threaded on one end and with a lever operated cam assembly on the other. The rod is inserted into the hollow axle of the wheel, a special nut is threaded on, and the lever is closed to tighten the cam and secure the wheel to the fork.

5. Wingnut (hardware) - Wikipedia

   en.wikipedia.org/wiki/Wingnut_(hardware)

   This collar mates with a fitting that receives the tube and secures it by means of a wingnut or wingbolt. When the stand is disassembled, only the wingnut or wingbolt needs to be loosened, and the collar remains in place, allowing the stand to be easily reassembled in exactly the same adjustment.

6. Shackle - Wikipedia

   en.wikipedia.org/wiki/Shackle

   Different types of shackles. The yellow cable ties indicate the date of the last tool inspection. A well-used shackle. A shackle (or shacklebolt), also known as a gyve, is a U-shaped piece of metal secured with a clevis pin or bolt across the opening, or a hinged metal loop secured with a quick-release locking pin mechanism.

7. Buttress thread - Wikipedia

   en.wikipedia.org/wiki/Buttress_thread

   Quick release vices are readily available. It is not known whether any of them are currently using buttress screws. An expired patent [ 5 ] for a clamp using a buttress thread exists and one article [ 6 ] describes a vise whose screw thread is disengaged by reverse rotation, which is likely to use a buttress thread, however no currently ...