Metric

Indented Hex Head

This product is also available in Inch
General
ThreadH
Height
WAF
Width Across Flats
Drive Size
Cross Recess
M2.2 x 0.81.6 / 1.33.2 / 3.020
M2.9 x 12.3 / 25.0 / 4.821
M3.5 x 1.32.6 / 2.35.5 / 5.322
M4.2 x 1.43.0 / 2.67.0 / 6.782
M4.8 x 1.63.8 / 3.38.0 / 7.782
M5.5 x 1.84.1 / 3.68.0 / 7.783
M6.3 x 1.84.7 / 4.110.0 / 9.783
M8 x 2.16.0 / 5.213.0 / 12.734
M9.5 x 2.17.5 / 6.516.0 / 15.734
Length
LengthL
(Length Code)
±0.13
4.55.5 / 3.7
6.57.3 / 5.7
1010.3 / 8.7
1313.8 / 12.2
1616.8 / 15.2
1919.8 / 18.2
2222.8 / 21.2
2525.8 / 24.2
3333.3 / 30.7
3839.3 / 36.7
4546.3 / 43.7
5051.3 / 48.7