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2. 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.

3. Corrugated galvanised iron - Wikipedia

   en.wikipedia.org/wiki/Corrugated_galvanised_iron

   Corrugated galvanised iron (CGI) or steel, colloquially corrugated iron (near universal), wriggly tin (taken from UK military slang), pailing (in Caribbean English), corrugated sheet metal (in North America), zinc (in Cyprus and Nigeria) or custom orb / corro sheet (Australia), is a building material composed of sheets of hot-dip galvanised ...

4. Zinc - Wikipedia

   en.wikipedia.org/wiki/Zinc

   In 2009 in the United States, 55% or 893,000 tons of the zinc metal was used for galvanization. [122] Zinc is more reactive than iron or steel and thus will attract almost all local oxidation until it completely corrodes away. [124] A protective surface layer of oxide and carbonate (Zn 5 (OH) 6 (CO 3) 2) forms as the zinc corrodes. [125]

5. Sheet metal - Wikipedia

   en.wikipedia.org/wiki/Sheet_metal

   Microscopic close-up of mild steel sheet metal. Sheet metal is metal formed into thin, flat pieces, usually by an industrial process. Thicknesses can vary significantly; extremely thin sheets are considered foil or leaf, and pieces thicker than 6 mm (0.25 in) are considered plate, such as plate steel, a class of structural steel. Sheet metal is ...

6. 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).

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 4.0 License; additional terms may apply.