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sullivan
USA
426 Posts |
 Posted - 06/01/2017 : 23:57:51
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Having just acquired a starter button from one of our members I have a question. Is the slot in the screw hole for a spline?, or is it to prevent splitting when in use or some other unknown reason.
Pictures of new/old button and my old switch.
Your help please.
Kindly,
Brian
Brian W Sullivan |
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greg
United Kingdom
856 Posts |
Posted - 07/01/2017 : 00:02:55
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| Yes Brian it's for the spline! If the rod on your switch hasn't got the lugs don't worry just fit it really tight and use locktite all its for is to stop the knob spinning on the rod then the screw coming lose. |
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sullivan
USA
426 Posts |
Posted - 07/01/2017 : 00:55:36
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Greg,
Thanks for that.
So does anyone have a screw that is used for the button available? Mine is as is shown a hex bolt now...
Best,
Brian W Sullivan |
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DickMorbey
United Kingdom
3693 Posts |
Posted - 07/01/2017 : 08:53:42
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Brian, it should be a countersunk raised head slotted screw/setscrew.
Dick Morbey
PA/PB 0743
Frieth, Oxon, UK |
Edited by - DickMorbey on 07/01/2017 08:54:43 |
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sullivan
USA
426 Posts |
Posted - 07/01/2017 : 19:27:47
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Dick,
I am quite familiar with various hardware names here in US as I own a furniture restoration company. I think this is what we refer to as a Oval Head Screw. The face being slightly domed and not completely flat. Or should it be completely flat?
Kindly,
Brian
Brian W Sullivan |
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whirlwind
New Zealand
94 Posts |
Posted - 07/01/2017 : 20:38:52
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Hello Brian,
Just looked up www.RestorationStuff.com page 36. They say 'Oval Head Screws have a slightly rounded top and are used in countersunk holes'.
YES! that is what we call raised countersunk. Should be a Slot Head Screw, but will probably be an English thread.
regards
Colin |
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Bruce Sutherland
United Kingdom
1608 Posts |
Posted - 07/01/2017 : 22:59:29
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Set Screw head types: "A picture speaks a thousand words"
Bruce. (PB0564) |
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