Nuts and Bolts


Holes Bolts (DIN 933) Nuts Washers (DIN125A)
Tapping Diameter Clearance Holes Bolt Head Size Bolt Side Nut Front Nut Side Washer Side Washer Front
Coarse Fine Close Medium Coarse s e k D s e m plain m thin id t od
Ratio 1.6D 1.8D 0.8 D 0.5D
M1 0.75 1.2 1
M1.2 0.95 1.4 1.2
M1.4 1.1 1.6 1.4
M1.6 1.25 1.7 1.8 2.0 1.6
M1.8 1.4 2.0 1.8
M2 1.6 2.2 2.4 2.6 2
M2.2 1.7 2.8 2.2
M2.5 2.05 2.7 2.9 3.1 2.5
M3 2.5 3.2 3.4 3.6 3 3.2 0.5 7
M3.5 2.9 3.9 3.5
M4 3.3 4.3 4.5 4.8 4 4.3 0.8 9
M5 4.2 5.3 5.5 5.8 5 5.3 1 10
M6 5.0 6.4 6.6 7.0 10 4 6 6.4 1.6 12.0
M7 7 7.4 1.6 14
M8 6.8 7.0 8.4 9.0 10.0 13 5.3 8 8.4 1.6 16
M10 8.5 8.7 10.5 11.0 12.0 17 6.4 10 10.5 2 20
M12 10.2 10.8 13 14 15 19 7.5 12 13 2.5 24
M14 12 15.5 22 8.8 14 15 2.5 28
M16 14.0 14.5 17.0 18.0 19.0 24 10 16 17 3 30
M18 15.5 20 27 11.5 18 19 3 34
M20 17.5 18.5 21.0 22.0 24.0 30 12.5 20 21 3 37
M22 19.5 24 32 14.22 22 23 3 39
M24 21.0 22.0 25.0 26.0 28.0 36 15.22 24 25 4 44
M27 41 17.35 27 28 4 50
M30 26.5 28.0 31.0 33.0 35.0 46 19.12 30 31 4 56
M33 50 21.42 33 34 5 60
M36 32.0 33.0 37.0 39.0 42.0 55 22.92 36 36 5 66
M39 60 25.43 39 40 6 72
M42 65 26.42 42 43 7 78
M45 45 46 7 85
M48 48 50 8 92
M52 52 54 8 98
M56 56 58 9 105
M60 60 62 9 110
M64 64 66 9 115
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