bolt size???

Anonymous-0

Well-known Member
Hey folks. Can someone translate this for me?
3/4NC10
5/8NC11

Actually just need to know what the 10 and 11 means. Or better yet, a link that I can order them online.

Thanks, Dave
 
NC nationa coarse thread threasd per inch

NFT national fine thread

NPT national pipe thread

these are the basics, and ther are probably a kazilion others that I never use.
 
3/4" Bolt size - NC National coarse - 10 Threads per inch.

5/8" bolt size - NC National Coarse - 11 Threads per inch.
 

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