UNC on a 69
 
In a message dated 20/05/2010 22:29:28 GMT Daylight Time,  
denadave@ca.rr.com writes:
Hi  Listers,
Quick one.
What is the thread size of the bolts for pillar  of  windscreen to body on 
a 
'62 sprite?
My best test is the bolts  are 5/16" but not clear if they are UNF or BSF. 
My thread gauges tend to  tell me they are 24's but a 5/16 - 24 die does 
not 
work well on a removed  bolt.
UNF = unified fine  60 degree inc angle and 24 TPI
BSF =  British Standard fine  55 degree inc angle and 22  TPI
David
Corona, CA
'62 Sprite MKII 
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