Nominal diameter

•  3 mm
•  4 mm
•  5 mm
•  6 mm
•  8 mm
•  10 mm
•  12 mm
•  14 mm
•  16 mm
•  18 mm
•  20 mm
•  22 mm
•  24 mm
•  27 mm
•  30 mm
•  36 mm
•  42 mm

Width across flats

•  5.5 mm
•  7 mm
•  8 mm
•  10 mm
•  13 mm
•  17 mm
•  19 mm
•  22 mm
•  24 mm
•  27 mm
•  30 mm
•  32 mm
•  36 mm
•  41 mm
•  46 mm
•  55 mm
•  65 mm

Harmonized System Code

•  73181692
•  73181699

Width across corners

•  6.01 mm
•  7.66 mm
•  8.79 mm
•  11.05 mm
•  14.38 mm
•  18.9 mm
•  21.1 mm
•  25.2 mm
•  26.75 mm
•  29.56 mm
•  32.95 mm
•  36.6 mm
•  39.55 mm
•  45.02 mm
•  50.85 mm
•  60.79 mm
•  71.3 mm

Height

•  2.4 mm
•  3.2 mm
•  4 mm
•  5 mm
•  6.5 mm
•  8 mm
•  10 mm
•  11 mm
•  13 mm
•  15 mm
•  16 mm
•  18 mm
•  19 mm
•  22 mm
•  24 mm
•  29 mm
•  34 mm