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