link to Home Page Logo, Link to Home Page Newman Tools Inc.     Tel 1-800-465-1384     Fax 1-800-605-2442
..."IN STOCK"... vast selection, over 30,000 different items including,
"hard-to-find/special sizes"		         Fast Jump on the Newman Tools' site

30,000 items... In Stock ... hard to find / special sizes ... we ship worldwide, customers in 50 countries

 

Tom's useful info: Pitch Conversions

Threads per inch, Pitch in inches, Pitch in mm




 

example 1/4-20" taps the

20 signifies "20 threads per inch" =.050 pitch ( 1 divided by 20 )

or if you are measuring in metric

it should be 1.27mm

 

Threads per inch Pitch in inches Pitch in mm
127 0.00787 0.200
120 0.00833 0.212
112 0.00893 0.227
101.6 0.00984 0.250
100 0.01000 0.254
96 0.01042 0.265
90 0.01111 0.282
84.67 0.01181 0.300
80 0.01250 0.318
72.57 0.01378 0.350
72 0.01389 0.353
64 0.01563 0.397
63.5 0.01575 0.400
60 0.01667 0.423
56.44 0.01772 0.450
56 0.01786 0.454
50.8 0.01969 0.500
48 0.02083 0.529
44 0.02273 0.577
42.33 0.02362 0.600
40 0.02500 0.635
36.29 0.02756 0.700
36 0.02778 0.706
34 0.02941 0.747
33.87 0.02952 0.750
32 0.03125 0.794
31.75 0.03150 0.800
30 0.03333 0.847
28.22 0.03544 0.900
28 0.03571 0.907
27 0.03704 0.941
26 0.03846 0.977
25.4 0.03937 1.000
24 0.04167 1.058
22 0.04545 1.155
20.32 0.04921 1.250
20 0.05000 1.270
19 0.05263 1.337
18 0.05556 1.411
16.93 0.05907 1.500
16 0.06250 1.588
14.51 0.06892 1.751
14 0.07143 1.814
13 0.07692 1.954
12.7 0.07874 2.000
12 0.08333 2.117
11.50 0.08696 2.209
11 0.09091 2.309
10.16 0.09843 2.500
10 0.10000 2.540
9 0.11111 2.822
8.47 0.11806 2.999
8 0.12500 3.175
7.26 0.13774 3.499
7 0.14286 3.629
6.35 0.15748 4.000
6 0.16667 4.233
5.64 0.17730 4.504
5.08 0.19685 5.000
5 0.20000 5.080
4.62 0.21645 5.498
4.5 0.22222 5.644
4.23 0.23641 6.005
4 0.25000 6.350
3 0.33333 8.467
2 0.50000 12.700

 




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Newman Tools Inc.
185 Iber Road
Stittsville, Ottawa, Ontario, Canada K2S 1E7
Phone: 1-613-836- 6776 or 1-800-465-1384
Fax: 1-613 -836 -9070 or 1-800-605-2442
 
 

Newman Tools Inc.
151 New Park Avenue
Hartford, CT 06106, USA
Phone: 1-800-465-1384
Fax: 1-800-605-2442

Email:     info@newmantools.com

Please send comments, questions, email to   tom@newmantools.com    ( this email will be returned advising you to resend the email to the following email address )

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updated November 2008
Newman Tools Inc.
updated January 2007
Newman Tools Inc.
June 2003
Newman Tools Inc.