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2. List of screw and bolt types - Wikipedia

   en.wikipedia.org/wiki/List_of_screw_and_bolt_types

   Sheet metal screws make excellent fasteners for attaching metal hardware to wood because the fully threaded shank provides good retention in wood. Twinfast screw: A Twinfast screw is a type of screw with two threads (i.e. a twin-start screw), so that it can be driven twice as fast as a normal (i.e. single-start) screw with the same pitch. [4]

3. Self-tapping screw - Wikipedia

   en.wikipedia.org/wiki/Self-tapping_screw

   Sheet metal screws (sometimes called "sheet-metal self-tappers", P–K or PK screws from the brand name Parker Kalon, the company which pioneered [7] the manufacture of, but did not invent, these screws) are a type of screw which can form a thread in thin sheet metal. Pan-head self-tapping screws are common in metal cases for electrical ...

4. Screw - Wikipedia

   en.wikipedia.org/wiki/Screw

   A typical lag screw can range in diameter from 4 to 20 mm or #10 to 1.25 in (4.83 to 31.75 mm), and lengths from 16 to 200 mm or 1 ⁄ 4 to 6 in (6.35 to 152.40 mm) or longer, with the coarse threads of a wood-screw or sheet-metal-screw threadform (but larger).

5. Screw mechanism - Wikipedia

   en.wikipedia.org/wiki/Screw_mechanism

   Because of its self-locking property (see below) the screw is widely used in threaded fasteners to hold objects or materials together: the wood screw, sheet metal screw, stud, and bolt and nut. The self-locking property is also key to the screw's use in a wide range of other applications, such as the corkscrew , screw top container lid ...

6. Speed nut - Wikipedia

   en.wikipedia.org/wiki/Speed_nut

   Most types are designed for either machine screws or sheet metal screws. Some nuts do not attach to the workpiece. Some nuts do not attach to the workpiece. These are usually shaped as either a rectangle, a flange nut , or a hex nut ; the rectangular speed nut is also known as a flat-style speed nut.

7. Sheet metal screw - Wikipedia

   en.wikipedia.org/?title=Sheet_metal_screw&...

   This page was last edited on 18 January 2022, at 18:10 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike License 4.0; additional terms may apply.