Hex cap screws (in)

Table of inch hex cap screw sizes.
Size 1 2DiameterFlat WidthHead HeightThread Length
1/40.2500.4380.1630.750
5/160.3130.5000.2110.875
3/80.3750.5630.2431.000
7/160.4380.6250.2911.125
1/20.5000.7500.3231.250
9/160.5630.8130.3711.375
5/80.6250.9380.4031.500
3/40.7501.1250.4831.750
7/80.8751.3130.5632.000
11.0001.5000.6272.250
1 1/81.1251.6880.7182.500
1 1/41.2501.8750.8132.750
1 3/81.3752.0630.8783.000
1 1/21.5002.2500.9743.250
1 3/41.7502.6251.1343.750
22.0003.0001.2634.250
2 1/42.2503.3751.4235.000
2 1/22.5003.7501.5835.500
2 3/42.7504.1251.7446.000
33.0004.5001.9356.500

Materials

  • SAE J429 Grade 3/5/8
  • ASTM A449
  • ASTM A354 Grade BD

Footnotes

  1. Dimensions per ASME B18.2.1-1996 in inches.

  2. Oberg, Jones, Horton, Ryffel, McCauley. (2020). Machinery’s Handbook 31 Digital Edition. https://ebooks.industrialpress.com/pdfreader/machinerys-handbook-digital-edition-31st