Spanner size - Bolt Size.
Spanner size - Bolt Size.
(OP)
Hi
I would like to know what standard bolt or screw size is associated with a 5/8" or 3/4" ring spanner.
ie. 5/8" ring spanner fits on nut(standard nut)what size would the bolt be. I dont want to go back to site to measure it.
I know it is not a 5/8 bolt.
Peter
I would like to know what standard bolt or screw size is associated with a 5/8" or 3/4" ring spanner.
ie. 5/8" ring spanner fits on nut(standard nut)what size would the bolt be. I dont want to go back to site to measure it.
I know it is not a 5/8 bolt.
Peter





RE: Spanner size - Bolt Size.
flats then the bolt would be
1/2 inch dia. if an unfinished bolt or a
7/16 dia. bolt if a finished
3/4 flat on bolt head.
For the 5/8 flat
7/16 dia. for unfinished bolt head or
3/8 dia. for finished bolt head
Nothing is ever simple.
RE: Spanner size - Bolt Size.
RE: Spanner size - Bolt Size.
You might find some help on the following :
http://www.geocities.com/Axiom43/nutsnbolts.html
Hope it saves you a journey!
Mike.
RE: Spanner size - Bolt Size.
Whitworth or British Standard Whitworth (BSW) nuts and bolts use the same spanners as do British Standard Fine (BSF). BSF bolts have a smaller head ie 'across flats' dimension than Whitworth for the same bolt diameter, by one sixteenth in the spanner rating.
thus:
3/16 BSW fits 1/4 BSF
1/4 BSW fits 5/16 BSF
5/16 BSW fits 3/8 BSF and so on.
In this way the British took engineering around the world!
Now we have metric sizes and nothing works at all!
Mike. :)