Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

Wind Systems

Towers, turbines, gearboxes; processes for shaping and finishing component parts.

Offshore

International news and technology for marine/offshore operations around the world.

Chemical Engineering

The industry gateway for chemical engineering and plant operations.

more free magazines
 
Size Major Dia Threads Per Inch Pitch Dia Minor Dia Externala Minor Dia Internalb Minor Dia Area Tensile Stress Area
# inch tpi inch inch inch sq. inch sq. inch
#0 0.06 80 0.0519 0.0451 0.0465 0.00151 0.0018
#1* 0.073 72 0.064 0.0565 0.058 0.00237 0.00278
#2 0.086 64 0.0759 0.0674 0.0691 0.00339 0.00394
#3* 0.099 56 0.0874 0.0778 0.0797 0.00451 0.00523
#4 0.112 48 0.0985 0.0871 0.0894 0.00566 0.00661
#5 0.125 44 0.1102 0.0979 0.1004 0.00716 0.0083
#6 0.138 40 0.1218 0.1082 0.1109 0.00874 0.01015
#8 0.164 36 0.146 0.1309 0.1339 0.01285 0.01474
#10 0.19 32 0.1697 0.1528 0.1562 0.0175 0.02
#12* 0.216 28 0.1928 0.1734 0.1773 0.0226 0.0258
1/4 0.25 28 0.2268 0.2074 0.2113 0.0326 0.0364
5/16 0.3125 24 0.2854 0.2629 0.2674 0.0524 0.058
3/8 0.375 24 0.3479 0.3254 0.3299 0.0809 0.0878
7/16 0.4375 20 0.405 0.378 0.3834 0.109 0.1187
1/2 0.5 20 0.4675 0.4405 0.4459 0.1486 0.1599
9/16 0.5625 18 0.5264 0.4964 0.5024 0.189 0.203
5/8 0.625 18 0.5889 0.5589 0.5649 0.24 0.256
3/4 0.75 16 0.7094 0.6763 0.6823 0.351 0.373
7/8 0.875 14 0.8286 0.79 0.7977 0.48 0.509
1 1 12 0.9459 0.9001 0.9098 0.625 0.663
1-1/8 1.125 12 1.0709 1.0258 1.0348 0.812 0.856
1.25 12 1.1959 1.1508 1.1598 1.024 1.073
1-3/8 1.375 12 1.3209 1.2758 1.2848 1.26 1.315
1.5 12 1.4459 1.4008 1.4098 1.521 1.581
# inch tpi inch inch inch sq. inch sq. inch
Size Major Dia Threads Per Inch Pitch Dia Minor Dia External a Minor Dia Internalb Minor Dia Area Tensile Stress Area
* Secondary Size aForm for UNR thread bBasic Minor Diameter