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This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help.
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Summary
Description |
English: A photograph showing two lag screws, also called lag bolts. The pen and the toothbrush are shown for scale. These particular lag screws are a half-inch-by-6-inch and a 3/8-inch-by-4-inch, both with hex heads (that is, external hex) and made from steel with a bright zinc coating (electroplated galvanization) for corrosion resistance. Dull gray coating with hot-dip galvanization is another common coating. The heads are cold-formed in a die, and the threads are rolled in another die. There is no machining (metalcutting) needed. See also File:Lag screws aka lag bolts 002.png.
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Date |
26 August 2011 |
Source |
Own work |
Author |
Three-quarter-ten |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
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File usage
The following pages on Schools Wikipedia link to this image (list may be incomplete):
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