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.

Essentials of Manufacturing

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

Injection Molding Design Guide

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

more free publications

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
1/4*   0.2500 0.2175 0.1905 0.1959 0.0269 0.0318
5/16   0.3125 0.2800 0.2530 0.2584 0.0481 0.0547
3/8   0.3750 0.3425 0.3155 0.3209 0.0755 0.0836
7/16*   0.4375 0.4050 0.3780 0.3834 0.1090 0.1187
1/2*   0.5000 0.4675 0.4405 0.4459 0.1486 0.160
9/16   0.5625 0.5300 0.5030 0.5084 0.194 0.207
5/8   0.6250 0.5925 0.5655 0.5709 0.246 0.261
  11/16 0.6875 0.6550 0.6280 0.6334 0.304 0.320
3/4*   0.7500 0.7175 0.6905 0.6959 0.369 0.386
  13/16* 0.8125 0.7800 0.7530 0.7584 0.439 0.458
7/8*   0.8750 0.8425 0.8155 0.8209 0.515 0.536
  15/16* 0.9375 0.9050 0.8780 0.8834 0.598 0.620
1*   1.0000 0.9675 0.9405 0.9459 0.687 0.711
  11/16 1.0625 1.0300 1.0030 1.0084 0.782 0.807
11/8   1.1250 1.0925 1.0655 1.0709 0.882 0.910
  13/16 1.1875 1.1550 1.1280 1.1334 0.990 1.018
11/4   1.2500 1.2175 1.1905 1.1959 1.103 1.133
  15/16 1.3125 1.2800 1.2530 1.2584 1.222 1.254
13/8   1.3750 1.3425 1.3155 1.3209 1.348 1.382
  17/16 1.4375 1.4050 1.3780 1.3834 1.479 1.51
11/2   1.5000 1.4675 1.4405 1.4459 1.62 1.65
  19/16 1.5625 1.5300 1.5030 1.5084 1.76 1.80
15/8   1.6250 1.5925 1.5655 1.5709 1.91 1.95
  111/16 1.6875 1.6550 1.6280 1.6334 2.07 2.11
13/4   1.7500 1.7175 1.6905 1.6959 2.23 2.27
  113/16 1.8125 1.7800 1.7530 1.7584 2.40 2.44
17/8   1.8750 1.8425 1.8155 1.8209 2.57 2.62
  115/16 1.9375 1.9050 1.8780 1.8834 2.75 2.80
2   2.0000 1.9675 1.9405 1.9459 2.94 2.99
  21/8 2.1250 2.0925 2.0655 2.0709 3.33 3.39
21/4   2.2500 2.2175 2.1905 2.1959 3.75 3.81
  23/8 2.3750 2.3425 2.3155 2.3209 4.19 4.25
21/2   2.5000 2.4675 2.4405 2.4459 4.66 4.72
  25/8 2.6250 2.5925 2.5655 2.5709 5.15 5.21
23/4   2.7500 2.7175 2.6905 2.6959 5.66 5.73
  27/8 2.8750 2.8425 2.8155 2.8209 6.20 6.27
3   3.0000 2.9675 2.9405 2.9459 6.77 6.84
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 UNC, UNF, or UNEF series
FREE Publications
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.

Essentials of Manufacturing

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

Injection Molding Design Guide

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

more publications