Unified Standard Series of Threads
 

 

0-80 UNF to .25-56 UNS

.3125-18 UNC to .5625 -32 UN

.625-11 UNC to .875-32 UN

.9375-12 UN to 1.1875-28 UN

1.25-7 UNC to 1.5625-20 UN

1.625-6 UN to 1.9375-20 UN

2-4.5 UNC to 2.75-20 UN

2.875-6 UN to 4-16 UN

 
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