Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.

CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

Injection Molding Design Guide

Guide for high quality and cost-effective plastic injection molding.

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Materials

Design

Processes

Units

Formulas

Math
 
Size Basic Major Diameter Basic Pitch Diameter Minor Diameter Minor Dia. Area Tensile Stress Area
Size Primary Size Secondary External Thread Internal Thread
inch inch inch inch inch inch sq. inch sq. inch
  #12 (0.216)* 0.2160 0.1928 0.1734 0.1773 0.0226 0.0258
1/4*   0.2500 0.2268 0.2074 0.2113 0.0326 0.0364
5/16   0.3125 0.2893 0.2699 0.2738 0.0556 0.0606
3/8   0.3750 0.3518 0.3324 0.3363 0.0848 0.0909
7/16*   0.4375 0.4143 0.3949 0.3988 0.1201 0.1274
1/2*   0.5000 0.4768 0.4574 0.4613 0.162 0.170
9/16   0.5625 0.5393 0.5199 0.5238 0.209 0.219
5/8   0.6250 0.6018 0.5824 0.5863 0.263 0.274
  11/16 0.6875 0.6643 0.6449 0.6488 0.323 0.335
3/4   0.7500 0.7268 0.7074 0.7113 0.389 0.402
  13/16 0.8125 0.7893 0.7699 0.7738 0.461 0.475
7/8   0.8750 0.8518 0.8324 0.8363 0.539 0.554
  15/16 0.9375 0.9143 0.8949 0.8988 0.624 0.640
1   1.0000 0.9768 0.9574 0.9613 0.714 0.732
  11/16 1.0625 1.0393 1.0199 1.0238 0.811 0.830
11/8   1.1250 1.1018 1.0824 1.0863 0.914 0.933
  13/16 1.1875 1.1643 1.1449 1.1488 1.023 1.044
11/4   1.2500 1.2268 1.2074 1.2113 1.138 1.160
  15/16 1.3125 1.2893 1.2699 1.2738 1.259 1.282
13/8   1.3750 1.3518 1.3324 1.3363 1.386 1.411
  17/16 1.4375 1.4143 1.3949 1.3988 1.52 1.55
11/2   1.5000 1.4768 1.4574 1.4613 1.66 1.69
inch inch inch inch inch inch sq. inch sq. inch
Size Primary Size Secondary Basic Major Diameter Basic Pitch Diameter External Thread Internal Thread Minor Dia. Area Tensile Stress Area
Size Minor Diameter
* Standard Sizes of the UNF or UNEF series
FREE Publications
Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.

CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

Injection Molding Design Guide

Guide for high quality and cost-effective plastic injection molding.

more publications