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  2. Hollow structural section - Wikipedia

    en.wikipedia.org/wiki/Hollow_structural_section

    A hollow structural section (HSS) is a type of metal profile with a hollow cross section. The term is used predominantly in the United States, or other countries which follow US construction or engineering terminology. HSS members can be circular, square, or rectangular sections, although other shapes such as elliptical are also available.

  3. Door - Wikipedia

    en.wikipedia.org/wiki/Door

    Standard door sizes in the US run along 2" increments. Customary sizes have a height of 78 or 80 in (2,000 or 2,000 mm) and a width of 18, 24, 26, 28, 30 or 36 in (460, 610, 660, 710, 760 or 910 mm). [24] Most residential passage (room to room) doors are 30 in × 80 in (760 mm × 2,030 mm).

  4. Structural steel - Wikipedia

    en.wikipedia.org/wiki/Structural_steel

    Plate, metal sheets thicker than 6 mm or 1 ⁄ 4 in. Open web steel joist While many sections are made by hot or cold rolling , others are made by welding together flat or bent plates (for example, the largest circular hollow sections are made from flat plate bent into a circle and seam-welded).

  5. Template:Height - Wikipedia

    en.wikipedia.org/wiki/Template:Height

    The template is intended for conversion of heights specified in either metres or in feet and inches. Template parameters [Edit template data] Parameter Description Type Status Metres m metre metres meter meters The height in metres. Do not use if feet and inches are specified. Number optional Centimetres cm centimetre centimetres centimeter centimeters The height in centimetres. Do not use if ...

  6. Bar stock - Wikipedia

    en.wikipedia.org/wiki/Bar_stock

    Drill rod diameters range from 0.0135 to 1.5 in (0.34 to 38.10 mm); in the United States diameters smaller than 27 ⁄ 64 th of an inch (11 mm) are made in letter drill sizes and number drill sizes, in addition to fractional sizes. Lengths are usually one or three feet (0.3048 or 0.9144 m).

  7. Piping and plumbing fitting - Wikipedia

    en.wikipedia.org/wiki/Piping_and_plumbing_fitting

    A reducer reduces the pipe size from a larger to a smaller bore (inner diameter). Alternatively, reducer may refer to any fitting which causes a change in pipe diameter. [15] This change may be intended to meet hydraulic flow requirements of the system or adapt to existing piping of a different size. The reduction length is usually equal to the ...

  8. Sheet metal - Wikipedia

    en.wikipedia.org/wiki/Sheet_metal

    The metal is heated and burnt by the laser beam, cutting the metal sheet. [20] The quality of the edge can be mirror smooth and a precision of around 0.1 mm (0.0039 in) can be obtained. Cutting speeds on thin 1.2 mm (0.047 in) sheet can be as high as 25 m (82 ft) per minute.

  9. Go/no-go gauge - Wikipedia

    en.wikipedia.org/wiki/Go/no-go_gauge

    The lower image is a plain plug gauge used to check the size of a hole; the green end is the go, and the red end is the no-go. The tolerance of the part that this gauge checks is 0.30 mm, where the lower size of the hole is 12.60 mm and the upper size is 12.90 mm, every size outside this range is out of tolerance. This may be initially ...