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2. Snap fastener - Wikipedia

   en.wikipedia.org/wiki/Snap_fastener

   The two halves of a riveted leather snap fastener. The top half has a groove which "snaps" in place when "pressed" into the bottom half. A snap fastener, also called snap button, press button, [1] press stud, [1] press fastener, dome fastener, popper, snap and tich (or tich button), is a pair of interlocking discs, made out of a metal or plastic, commonly used in place of traditional buttons ...

3. Back closure - Wikipedia

   en.wikipedia.org/wiki/Back_closure

   Dress with a discreet back zipper at the seam. A back closure is a means for fastening a garment at the rear, such as with a zipper, hooks-and-eyes or buttons.Back closures were once common on Western female clothing, but have recently become less so, especially on female casual and business attire.

4. Dzus fastener - Wikipedia

   en.wikipedia.org/wiki/Dzus_fastener

   The Dzus fasteners (gold coloured circular objects) fastening the cowling panels of the 1930s Hawker Hind. The Dzus fastener, also known as a turnlock fastener or quick-action panel fastener, [1] is a type of proprietary quarter-turn spiral cam lock fastener often used to secure skin panels on aircraft and other high-performance vehicles.

5. Screw mechanism - Wikipedia

   en.wikipedia.org/wiki/Screw_mechanism

   Tightening the fastener by turning it puts compression force on the materials or parts being fastened together, but no amount of force from the parts will cause the screw to turn backwards and untighten. This property is also the basis for the use of screws in screw top container lids, vises, C-clamps, and screw jacks. A heavy object can be ...

6. List of screw and bolt types - Wikipedia

   en.wikipedia.org/wiki/List_of_screw_and_bolt_types

   A fastener comprising a mated pair of screw and post (binding barrel), which are a machine screw and a nut that is barrel-shaped. The nut has a flange and a protruding boss that is internally threaded. The bolt (mated pair, screw and post) sits within the components being fastened, and the flange provides the bearing surface.

7. Snap-fit - Wikipedia

   en.wikipedia.org/wiki/Snap-fit

   The annular snap-fit utilizes a hoop-strain to hold into place. Hoop-strain is the expansion of the circumference of the more elastic piece as it is pushed onto the more rigid piece. In most cases the design is circular. Some popular examples are pen caps, ball and socket joints, snap fasteners and some water bottle caps.