Re: Re: Re: Re: York threads for valve stem


[ Follow Ups ] [ Post Followup ] [ TubeNet BBS ] [ FAQ ]

Posted by Doug Elliott on May 18, 2003 at 17:40:23:

In Reply to: Re: Re: Re: York threads for valve stem posted by SAE on May 17, 2003 at 15:35:20:

You said "An easy (and very close) way to get the major diameter of an SAE screw is to take the size number, multiply by 13 and add 60. So a 4-40 screw would be 40 tpi and have a major diameter of 4x13+60 = 0.112 inch. An 8-32 screw would be 32 tpi and have a major diameter of 8x13+60 = 0.164 inch."

Is that for real? I never heard of it, but it sure is good to know. Where did you learn that?



Follow Ups: