metric-hex-bolts-screws-reduced-body-diameters

Dimensions of Metric Hex Bolts & Hex Screws with Reduced Body Diameters

Nominal Diameter, D, and Thread PitchShoulder Diameter Ds,Body Diameter Dsi,Shoulder Length, Lsh
MaxMinMaxMinMaxMin
Metric Formed Hex Screws (ANSI B18.2.3.2M-1979, R1989)
M5 x 0.85.004.464.464.363.52.5
M6 x 16.005.825.395.214.03.0
M8 x 1.258.007.787.267.045.04.0
M10 x 1.510.009.789.088.866.05.0
M12 x 1.7512.0011.7310.9510.687.06.0
M14 x 214.0013.7312.7712.508.07.0
M16 x 216.0015.7314.7714.509.08.0
M20 x 2.520.0019.6718.4918.1611.010.0
M24 x 324.0023.6722.1321.8013.012.0
Metric Hex Flange Screws (ANSI B18.2.3.4M-1984)
M5 x 0.85.004.824.464.363.52.5
M6 x 16.005.825.395.214.03.0
M8 x 1.258.007.787.267.045.04.0
M10 x 1.510.009.789.088.866.05.0
M12 x 1.7512.0011.7310.9510.687.06.0
M14 x 214.0013.7312.7712.58.07.0
M16 x 216.0015.7314.7714.59.08.0
Metric Hex Bolts (ANSI B18.2.3.5M-1979, R1989)
M5 x 0.85.484.524.464.363.52.5
M6 x 16.485.525.395.214.03.0
M8 x 1.258.587.427.267.045.04.0
M10 x 1.510.589.429.088.866.05.0
M12 x 1.7512.7011.3010.9510.687.06.0
M14 x 214.7013.3012.7712.508.07.0
M16 x 216.7015.3014.7714.509.08.0
M20 x 2.520.8419.1618.4918.1611.010.0
M24 x 324.8423.1622.1321.8013.012.0
Metric Heavy Hex Bolts (ANSI B18.2.3.6M-1979, R1989)
M12 x 1.7512.7011.3010.9510.687.06.0
M14 x 214.7013.3012.7712.508.07.0
M16 x 216.7015.3014.7714.509.08.0
M20 x 2.520.8419.1618.4918.1611.010.0
M24 x 324.8423.1622.1321.8013.012.0
Metric Heavy Hex Flange Screws (ANSI B18.2.3.9M-1984)
M10 x 1.510.009.789.088.866.05.0
M12 x 1.7512.0011.7310.9510.687.06.0
M14 x 214.0013.7312.7712.508.07.0
M16 x 216.0015.7314.7714.509.08.0
M20 x 2.520.0019.6718.4918.1611.010.0
  • a Shoulder is mandatory for formed hex screws, hex flange screws, and heavy hex flange screws. Shoulder is optional for hex bolts and heavy hex bolts.
  • All dimensions are in millimeters.