I need to order some new nuts and bolts for my Mini, but wanted to check what the sizes mean. For example a 3/8" UNF bolt. Does the 3/8" refer to the diamater of the thread, or does it mean that it needs a 3/8" spanner to fit the head? Thanks.
Nut & Bolt Sizes
Started by
matt615
, Aug 28 2008 05:56 PM
3 replies to this topic
#2
Jimmy Hat
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Posted 28 August 2008 - 06:11 PM
I think its the size of the spanner you need, also a lot if not all of imperial spanner sizes do have exact metric equivalents
Edited by Jimmy Hat, 28 August 2008 - 06:11 PM.
#3
Ethel
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Posted 28 August 2008 - 06:24 PM
The sizes are nominal really. A 3/8" bolt will fit snuggly in a 3/8" hole.
http://www.boltdepot...-Head-Size.aspx
http://www.boltdepot...-Head-Size.aspx
#4
Pauly
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Posted 28 August 2008 - 07:23 PM
3/8 UNF is the thread size if its the head size it would be 3/8 af (across flats).
Paul.
Paul.
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