그림:Screws.jpg

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Various screws: differing sizes and colors, several Phillips, a flathead, and a Torx. Also included: wall anchor screws (one expanded), and a US quarter for scale.


Public domain This image has been (or is hereby) released into the public domain by its author, Brianiac at the English Wikipedia project. This applies worldwide.

In case this is not legally possible:
Brianiac grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.



This image was originally uploaded on en.wikiopedia by user: Brianiac

Picture taken by Brianiac Fri Sep 26.

file history:

21:53, 28 Sep 2003 . . Brianiac (18351 bytes) (various screws)
U.S. quarter
A tape measure
This image has a coin in it to indicate scale.

Do not rely solely on coins or other "common" objects for scale, as it will require people unfamiliar with it to look up its dimensions or guess, both of which defeat the purpose of the coin in the first place.

Please photograph an object such as a ruler or add a scale marking in via an image editor instead. Standard units such as SI/metric units should be used (See metre, 1 E-2 m).

Examples of good practice: with superimposed line.
Examples of bad practice: here.


Common coin diameters for reference:

  • U.S. and Canada:
    • 1¢: 19 mm, 0.75 in;
    • 5¢: 20 mm, 0.79 in;
    • 10¢: 18 mm, 0.71 in;
    • 25¢: 24 mm, 0.95 in;
    • 50¢: 30 mm, 1.18 in;
    • $1: 26 mm, 1.02 in;
    • $2: 28 mm, 1.10 in.
  • UK
    • 1p: 20.32 mm, 0.80 in;
    • 2p: 25.91 mm, 1.02 in;
    • 5p: 18.00 mm, 0.71 in;
    • 10p: 24.50 mm, 0.96 in;
    • 20p: 21.40 mm, 0.84 in;
    • 50p: 27.30 mm, 1.07 in;
    • £1: 22.50 mm, 0.89 in;
    • £2: 28.40 mm, 1.12 in.
  • Eur
    • 1¢: 16.25 mm,
    • 2¢: 18.75 mm,
    • 5¢: 21.25 mm,
    • 10¢: 19.75 mm,
    • 20¢: 22.25 mm,
    • 50¢: 24.25 mm,
    • 1€: 23.25 mm,
    • 2€: 25.75 mm,

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