Screw threads
 
OLD
GUAGE
OR NO.
SIZE
NEW
METRIC
SIZE
OLD
GUAGE
OR NO.
SIZE
NEW
METRIC
SIZE
3 2.5    
4 3.0 4 2.9
5 3.2    
6 3.5 6 3.5
7 3.8    
8 4.0 8 4.2
9 4.5    
10 5.0 10 4.8
12 5.5 12 5.5
14 6.0 14 6.3
 
Boltfast (PTY) Ltd
   
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