Subject: formula for number thread o.d.

From: [email-masked] (Jay McMunn)
Date: 21 Sep 96 12:18:53 GMT

The formula for the outside diameter of number threads (inch system)
is "the number times 13 plus .060".  

Example:  a number 10 screw = 10 x 13 = .130, .130 plus .060 = .190

an 0-80 = .060 dia.

Jay