32UN and 32UNR Fixed Pitch Series Thread Chart

Measured in Inches
Size Primary
Inch
Basic Major Diameter
Inch
Basic Pitch Diameter
Inch
Minor Diameter, inch Minor Dia. Area
sq. inch
Tensile Stress Area
sq. inch
External Thread Internal Thread
inch inch inch inch inch sq. inch sq. inch
#6 0.138 0.1177 0.1008 0.1042 0.00745 0.00909
#8 0.164 0.1437 0.1268 0.1302 0.01196 0.014
#10 0.19 0.1697 0.1528 0.1562 0.0175 0.02
#12 0.216 0.1957 0.1788 0.1822 0.0242 0.027
1/4 0.25 0.2297 0.2128 0.2162 0.0344 0.0379
5/16 0.3125 0.2922 0.2753 0.2787 0.0581 0.0625
3/8 0.375 0.3547 0.3378 0.3412 0.0878 0.0932
7/16 0.4375 0.4172 0.4003 0.4037 0.1237 0.1301
1/2 0.5 0.4797 0.4628 0.4662 0.166 0.173
9/16 0.5625 0.5422 0.5253 0.5287 0.214 0.222
5/8 0.625 0.6047 0.5878 0.5912 0.268 0.278
11/16 0.6875 0.6672 0.6503 0.6537 0.329 0.339
3/4 0.75 0.7297 0.7128 0.7162 0.395 0.407
13/16 0.8125 0.7922 0.7753 0.7787 0.468 0.48
7/8 0.875 0.8547 0.8378 0.8412 0.547 0.56
15/16 0.9375 0.9172 0.9003 0.9037 0.632 0.646
1 1 0.9797 0.9628 0.9662 0.723 0.738