I've just finished ME ThreadPal, a graphical screw thread calculator and database. Unless you happen to enjoy digging through big books and running long formulas through your pocket calculator, this program is well worth a look.
Features include:
· Detailed data for thirty-seven thread types · Fifteen-hundred built-in thread sizes · Calculations for custom diameters and pitches · Thread wire calculations - best, maximum, minimum, and whatever's in between · Pitch diameter measurements for multiple-start threads · Lead angle calculations · Plating and application guidelines · Intelligent tap drill chart · Data for cut and form taps · Graphical popups to illustrate thread terminology · Inch or metric display · Detailed printed reportOne mouse click selects the thread type, two more select the thread size. Really easy.
Typing is required only when you want to enter a custom major diameter/pitch combination, change the number of starts, or change the wire size.
All calculations are based on data and formulas derived from national and international standards, military standards, and standard reference books. I've done all the work so you don't have to.
Everything has been carefully checked for accuracy.
Installer or zipped versions are available - you can run from a thumb drive with no problems.
The program costs $50.
Screenshots, demo versions, and purchase info are available at