# Dimensions

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Thread $d$ , in $\mathrm{mm}$ Pitch $p$ , in $\mathrm{mm}$ Dimension $a$ max., in $\mathrm{mm}$ Dimension $b$ min., in $\mathrm{mm}$ Head diameter $d_k$ nom. = max., in $\mathrm{mm}$ Head diameter $d_k$ min., in $\mathrm{mm}$ Diameter $d_a$ max., in $\mathrm{mm}$ Dimension $k$ nom. = max., in $\mathrm{mm}$ Dimension $k$ min., in $\mathrm{mm}$ Dimension $n$ nom., in $\mathrm{mm}$ Dimension $n$ max., in $\mathrm{mm}$ Dimension $n$ min., in $\mathrm{mm}$ Dimension $r$ min., in $\mathrm{mm}$ Dimension $t$ min., in $\mathrm{mm}$ Dimension $w$ min., in $\mathrm{mm}$ Dimension $x$ max., in $\mathrm{mm}$ Range of commercial lengths $l$ nom., in $\mathrm{mm}$
M1.6 0.35 0.7 25 3 2.86 2 1.1 0.96 0.4 0.6 0.46 0.1 0.45 0.4 0.9 2, 3, 4, 5, 6, 8, 10, 12, (14), 16
M2 0.4 0.8 25 3.8 3.62 2.6 1.4 1.26 0.5 0.7 0.56 0.1 0.6 0.5 1 3, 4, 5, 6, 8, 10, 12, (14), 16, 20
M2.5 0.45 0.9 25 4.5 4.32 3.1 1.8 1.66 0.6 0.8 0.66 0.1 0.7 0.7 1.1 3, 4, 5, 6, 8, 10, 12, (14), 16, 20, 25
M3 0.5 1 25 5.5 5.32 3.6 2 1.86 0.8 1 0.86 0.1 0.85 0.75 1.25 4, 5, 6, 8, 10, 12, (14), 16, 20, 25, 30
(M3.5) 0.6 1.2 38 6 5.82 4.1 2.4 2.26 1 1.2 1.06 0.1 1 1 1.5 5, 6, 8, 10, 12, (14), 16, 20, 25, 30, 35
M4 0.7 1.4 38 7 6.78 4.7 2.6 2.46 1.2 1.51 1.26 0.2 1.1 1.1 1.75 5, 6, 8, 10, 12, (14), 16, 20, 25, 30, 35, 40
M5 0.8 1.6 38 8.5 8.28 5.7 3.3 3.12 1.2 1.51 1.26 0.2 1.3 1.3 2 6, 8, 10, 12, (14), 16, 20, 25, 30, 35, 40, 45, 50
M6 1 2 38 10 9.78 6.8 3.9 3.6 1.6 1.91 1.66 0.25 1.6 1.6 2.5 8, 10, 12, (14), 16, 20, 25, 30, 35, 40, 45, 50, (55), 60
M8 1.25 2.5 38 13 12.73 9.2 5 4.7 2 2.31 2.06 0.4 2 2 3.2 10, 12, (14), 16, 20, 25, 30, 35, 40, 45, 50, (55), 60, (65), 70, (75), 80
M10 1.5 3 38 16 15.73 11.2 6 5.7 2.5 2.81 2.56 0.4 2.4 2.4 3.8 12, (14), 16, 20, 25, 30, 35, 40, 45, 50, (55), 60, (65), 70, (75), 80