ThreadPal can pay for itself the first day you use it!  It's software that instantly calculates complete dimensional and tolerance data for the vast majority of thread types you'll ever encounter.
ME ThreadPal for fast thread calculations.

ThreadPal provides detailed calculations for:

thirty-eight types of inch and metric threads                   thread types
major diameter, minor diameter, pitch diameter
measurement over wires
inch and metric tolerances
multiple-start threads
coating and polishing allowances
length of engagement
thread height
lead angle / helix angle
thread percentage
tap drills for cut and form taps

ThreadPal features:

minimal typing
inch or metric display
graphical aids
detailed printed report
data export
comprehensive user guide
total support
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ThreadPal calculates dimensions for  the following thread types.

Unified 60 Series
UN includes UN, UNC, UNF, UNEF, UNS
UNR includes UNR, UNRC, UNRF, UNREF, UNRS
UNJ includes UNJ, UNJC, UNJF, UNJEF, UNJS
 
ACME
General Purpose
Centralizing
Stub
 
BUTT - American National Standard Buttress 7 x 45
 
UNM - Unified Miniature Series
 
NPT - American National Standard Taper Pipe Thread
NPTF - American National Standard Dryseal Taper Pipe Thread
 
NPSM - American National Standard Straight Pipe Thread for Fixtures and Free-Fitting Mechanical Joints
 
NPSL - American National Standard Straight Pipe Thread for Locknuts and Loose-Fitting Mechanical Joints
 
STI - Screw Thread Insert For Unified Coarse and Fine Pitch Series
 
ISO 60 Series
M - Metric M and MS Profile
MJ - Metric MJ and MJS Profile
 
Tr - ISO Metric Trapezoidal
 
S - ISO Metric Buttress 3 x 30
 
Whitworth - includes British Standard Whitworth BSW, BSF, and Whitworth Special
 
BSPT - ISO Taper Pipe
BSPP - ISO Parallel Pipe
 
STI - Screw Thread Insert For ISO Metric Thread Series
 
Pg - Metric Conduit Thread
 
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Software to calculate screw thread data.

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