CSN 21301 - Hexagon head bolts with nut, production class C

Equivalent Standards

CSN 21301

Dimensions for CSN 21301 - Hexagon head bolts with nut, production class C

Thread d p b c da ds dw e k kw r s
l?125mm 125mm<l?200mm l>200mm max max max min min. min. nom max min min min nom=max min
M5 0.8 16 22 35 0.5 6 5.48 4.52 6.74 8.63 3.5 3.875 3.125 2.19 0.2 8.00 7.64
M6 1 18 24 37 0.5 7.2 6.48 5.52 8.74 10.89 4 4.375 3.625 2.54 0.25 10.00 9.64
M8 1.25 22 28 41 0.6 10.2 8.58 7.42 11.47 14.2 5.3 5.675 4.925 3.45 0.4 13.00 12.57
M10 1.5 26 32 45 0.6 12.2 10.58 9.42 14.47 17.59 6.4 6.85 5.95 4.17 0.4 16.00 15.57
M12 1.75 30 36 49 0.6 14.7 12.7 11.3 16.47 19.85 7.5 7.95 7.05 4.94 0.6 18.00 17.57
M16 2 38 44 57 0.8 18.7 16.7 15.3 22 26.17 10 10.75 9.25 6.48 0.6 24.00 23.16
M20 2.5 46 52 65 0.8 24.4 20.84 19.16 27.7 32.95 12.5 13.4 11.6 8.12 0.8 30.00 29.16
M24 3 54 60 73 0.8 28.4 24.84 23.16 33.25 39.55 15 15.9 14.1 9.87 0.8 36 35
M30 3.5 66 72 85 0.8 35.4 30.84 29.16 42.75 50.85 18.7 19.75 17.65 12.36 1 46 45
M36 4 - 84 97 0.8 42.4 37 35 51.11 60.79 22.5 23.55 21.45 15.02 1 55.0 53.8
M42 4.5 - 96 109 1 48.6 43 41 59.95 71.3 26 27.05 24.95 17.47 1.2 65.0 63.1
M48 5 - 108 121 1 56.6 49 47 69.45 82.6 30 31.05 28.95 20.27 1.6 75.0 73.1
M56 5.5 - - 137 1 67 57.2 54.8 78.66 93.56 35 36.25 33.75 23.63 2 85.0 82.8
M64 6 - - 153 1 75 65.2 62.8 88.16 104.86 40 41.25 38.75 27.13 2 95.0 92.8