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11th Feb 2020, 7:13 pm | #1 |
Dekatron
Join Date: Nov 2006
Location: London, UK.
Posts: 3,496
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What are these screws with an integral starburst ?
I found a SMPS case in the street and would like to clean it up and use it in a larger proejct . I’d like to use these screws ...
(See photo ) but need a name for them generically ... the biting side has a starburst effect which clamps the surface better The second one is a close up of the case . Both are enlarged, they’re probably M2.5 or M3 self-tapping; it’s the starry aspect that I’m trying to define
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Al |
11th Feb 2020, 7:29 pm | #2 |
Moderator
Join Date: Jun 2003
Location: Oxford, UK
Posts: 27,788
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Re: What are these screws with an integral starburst ?
I don't know what they're called, but they seem to turn up a lot in generic computer hardware. I've got loads of scavenged ones if you want a few.
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11th Feb 2020, 8:29 pm | #3 |
Diode
Join Date: Feb 2020
Location: Lymington, Hampshire, UK.
Posts: 4
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Re: What are these screws with an integral starburst ?
That close up of the first screw looks like looking into a jet engine! As for a name, try Toothed Screws, or Toothed Hex Screws.
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11th Feb 2020, 8:33 pm | #4 |
Dekatron
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
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Re: What are these screws with an integral starburst ?
Serrated washer head.
Lawrence. |
11th Feb 2020, 9:00 pm | #5 | |
Dekatron
Join Date: Nov 2006
Location: London, UK.
Posts: 3,496
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Re: What are these screws with an integral starburst ?
Quote:
Sending DM Thanks !
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Al |
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11th Feb 2020, 9:01 pm | #6 | |
Dekatron
Join Date: Nov 2006
Location: London, UK.
Posts: 3,496
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Re: What are these screws with an integral starburst ?
Quote:
Haha! Yes, it does ! Thanks
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Al |
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11th Feb 2020, 9:01 pm | #7 |
Dekatron
Join Date: Nov 2006
Location: London, UK.
Posts: 3,496
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Re: What are these screws with an integral starburst ?
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Al |
11th Feb 2020, 11:50 pm | #8 |
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Join Date: Mar 2012
Location: Fife, Scotland, UK.
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Re: What are these screws with an integral starburst ?
Shakeproof screws I've heard them called.
David
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Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done |
12th Feb 2020, 9:02 am | #9 |
Octode
Join Date: Jul 2004
Location: Dundee, UK.
Posts: 1,797
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Re: What are these screws with an integral starburst ?
Serrated flange screws or serrated flange head screws.
https://www.mcmaster.com/serrated-flange-screws PMM |
12th Feb 2020, 11:07 am | #10 |
Nonode
Join Date: Jun 2007
Location: Coulsdon, London, UK.
Posts: 2,152
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Re: What are these screws with an integral starburst ?
The profile of the serrations seems to be a 'sawtooth'.
I imagine this would be an advantage in a shake-proof screw. |