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Bolt: hexagon head

ISO 4017

ISO 4017 - Hexagon head screws

Hexagon head screws with metric coarse pitch thread, product grades A and B. The screw is turned by a spanner on a hexagon head and is threaded over its whole length, so one size fits any grip and it can be driven into a tapped hole to any depth; this is the general assembly fastener, used wherever the joint does not need to be clamped on unthreaded metal. The head is the head of ISO 4014 value for value: the thread diameter fixes the width across flats s, the width across corners e, the head height k and the bearing face dw. The thread reaches the head but for the run-out under it, which the standard limits to a max = 3P, so the guaranteed thread length is l - 3P. The length decides the product grade, which is the close grade A up to M24 and 150 mm and the medium grade B beyond either. The range of standard lengths follows a rule instead of a table: from 2d rounded to the nearest nominal length, up to ten diameters and never above 200 mm - a longer joint takes the partially threaded bolt of ISO 4014. Covers threads M1,6 to M64 with nominal lengths 3 to 200 mm. Its German predecessor DIN 933 was replaced by DIN EN ISO 4017, but keeps wider spanner sizes on M10, M12 and M14; the partially threaded counterpart is ISO 4014, the grade C version is ISO 4018 and the fine pitch one is ISO 8676.

ISO 4017

Geometry

×
Thread diameter
Thread pitch
Bolt length
Thread length
Width across flats
Width across corners
Head height
Radius under head
Product Thread diameter, mm Thread pitch, mm Bolt length, mm Thread length, mm Width across flats, mm Width across corners, mm Head height, mm Head bearing face diameter, mm Radius under head, mm Transition diameter, mm Unthreaded shank diameter, mm Product grade
ISO 4017 hexagon head screw M1.6x3 1.6 0.35 3 1.95 3.2 3.41 1.1 2.54 0.1 2 1.373 A
ISO 4017 hexagon head screw M1.6x4 1.6 0.35 4 2.95 3.2 3.41 1.1 2.54 0.1 2 1.373 A
ISO 4017 hexagon head screw M1.6x5 1.6 0.35 5 3.95 3.2 3.41 1.1 2.54 0.1 2 1.373 A
ISO 4017 hexagon head screw M1.6x6 1.6 0.35 6 4.95 3.2 3.41 1.1 2.54 0.1 2 1.373 A
ISO 4017 hexagon head screw M1.6x8 1.6 0.35 8 6.95 3.2 3.41 1.1 2.54 0.1 2 1.373 A
ISO 4017 hexagon head screw M1.6x10 1.6 0.35 10 8.95 3.2 3.41 1.1 2.54 0.1 2 1.373 A
ISO 4017 hexagon head screw M1.6x12 1.6 0.35 12 10.95 3.2 3.41 1.1 2.54 0.1 2 1.373 A
ISO 4017 hexagon head screw M1.6x16 1.6 0.35 16 14.95 3.2 3.41 1.1 2.54 0.1 2 1.373 A
ISO 4017 hexagon head screw M2x4 2 0.4 4 2.8 4 4.32 1.4 3.34 0.1 2.6 1.74 A
ISO 4017 hexagon head screw M2x5 2 0.4 5 3.8 4 4.32 1.4 3.34 0.1 2.6 1.74 A
ISO 4017 hexagon head screw M2x6 2 0.4 6 4.8 4 4.32 1.4 3.34 0.1 2.6 1.74 A
ISO 4017 hexagon head screw M2x8 2 0.4 8 6.8 4 4.32 1.4 3.34 0.1 2.6 1.74 A
ISO 4017 hexagon head screw M2x10 2 0.4 10 8.8 4 4.32 1.4 3.34 0.1 2.6 1.74 A
ISO 4017 hexagon head screw M2x12 2 0.4 12 10.8 4 4.32 1.4 3.34 0.1 2.6 1.74 A
ISO 4017 hexagon head screw M2x16 2 0.4 16 14.8 4 4.32 1.4 3.34 0.1 2.6 1.74 A
ISO 4017 hexagon head screw M2x20 2 0.4 20 18.8 4 4.32 1.4 3.34 0.1 2.6 1.74 A
ISO 4017 hexagon head screw M2.5x5 2.5 0.45 5 3.65 5 5.45 1.7 4.34 0.1 3.1 2.208 A
ISO 4017 hexagon head screw M2.5x6 2.5 0.45 6 4.65 5 5.45 1.7 4.34 0.1 3.1 2.208 A
ISO 4017 hexagon head screw M2.5x8 2.5 0.45 8 6.65 5 5.45 1.7 4.34 0.1 3.1 2.208 A
ISO 4017 hexagon head screw M2.5x10 2.5 0.45 10 8.65 5 5.45 1.7 4.34 0.1 3.1 2.208 A
ISO 4017 hexagon head screw M2.5x12 2.5 0.45 12 10.65 5 5.45 1.7 4.34 0.1 3.1 2.208 A
ISO 4017 hexagon head screw M2.5x16 2.5 0.45 16 14.65 5 5.45 1.7 4.34 0.1 3.1 2.208 A
ISO 4017 hexagon head screw M2.5x20 2.5 0.45 20 18.65 5 5.45 1.7 4.34 0.1 3.1 2.208 A
ISO 4017 hexagon head screw M2.5x25 2.5 0.45 25 23.65 5 5.45 1.7 4.34 0.1 3.1 2.208 A
ISO 4017 hexagon head screw M3x6 3 0.5 6 4.5 5.5 6.01 2 4.84 0.1 3.6 2.675 A
ISO 4017 hexagon head screw M3x8 3 0.5 8 6.5 5.5 6.01 2 4.84 0.1 3.6 2.675 A
ISO 4017 hexagon head screw M3x10 3 0.5 10 8.5 5.5 6.01 2 4.84 0.1 3.6 2.675 A
ISO 4017 hexagon head screw M3x12 3 0.5 12 10.5 5.5 6.01 2 4.84 0.1 3.6 2.675 A
ISO 4017 hexagon head screw M3x16 3 0.5 16 14.5 5.5 6.01 2 4.84 0.1 3.6 2.675 A
ISO 4017 hexagon head screw M3x20 3 0.5 20 18.5 5.5 6.01 2 4.84 0.1 3.6 2.675 A
ISO 4017 hexagon head screw M3x25 3 0.5 25 23.5 5.5 6.01 2 4.84 0.1 3.6 2.675 A
ISO 4017 hexagon head screw M3x30 3 0.5 30 28.5 5.5 6.01 2 4.84 0.1 3.6 2.675 A
ISO 4017 hexagon head screw M3.5x8 3.5 0.6 8 6.2 6 6.58 2.4 5.34 0.1 4.1 3.11 A
ISO 4017 hexagon head screw M3.5x10 3.5 0.6 10 8.2 6 6.58 2.4 5.34 0.1 4.1 3.11 A
ISO 4017 hexagon head screw M3.5x12 3.5 0.6 12 10.2 6 6.58 2.4 5.34 0.1 4.1 3.11 A
ISO 4017 hexagon head screw M3.5x16 3.5 0.6 16 14.2 6 6.58 2.4 5.34 0.1 4.1 3.11 A
ISO 4017 hexagon head screw M3.5x20 3.5 0.6 20 18.2 6 6.58 2.4 5.34 0.1 4.1 3.11 A
ISO 4017 hexagon head screw M3.5x25 3.5 0.6 25 23.2 6 6.58 2.4 5.34 0.1 4.1 3.11 A
ISO 4017 hexagon head screw M3.5x30 3.5 0.6 30 28.2 6 6.58 2.4 5.34 0.1 4.1 3.11 A
ISO 4017 hexagon head screw M3.5x35 3.5 0.6 35 33.2 6 6.58 2.4 5.34 0.1 4.1 3.11 A
ISO 4017 hexagon head screw M4x8 4 0.7 8 5.9 7 7.66 2.8 6.2 0.2 4.7 3.545 A
ISO 4017 hexagon head screw M4x10 4 0.7 10 7.9 7 7.66 2.8 6.2 0.2 4.7 3.545 A
ISO 4017 hexagon head screw M4x12 4 0.7 12 9.9 7 7.66 2.8 6.2 0.2 4.7 3.545 A
ISO 4017 hexagon head screw M4x16 4 0.7 16 13.9 7 7.66 2.8 6.2 0.2 4.7 3.545 A
ISO 4017 hexagon head screw M4x20 4 0.7 20 17.9 7 7.66 2.8 6.2 0.2 4.7 3.545 A
ISO 4017 hexagon head screw M4x25 4 0.7 25 22.9 7 7.66 2.8 6.2 0.2 4.7 3.545 A
ISO 4017 hexagon head screw M4x30 4 0.7 30 27.9 7 7.66 2.8 6.2 0.2 4.7 3.545 A
ISO 4017 hexagon head screw M4x35 4 0.7 35 32.9 7 7.66 2.8 6.2 0.2 4.7 3.545 A
ISO 4017 hexagon head screw M4x40 4 0.7 40 37.9 7 7.66 2.8 6.2 0.2 4.7 3.545 A
ISO 4017 hexagon head screw M5x10 5 0.8 10 7.6 8 8.79 3.5 7.2 0.2 5.7 4.48 A
ISO 4017 hexagon head screw M5x12 5 0.8 12 9.6 8 8.79 3.5 7.2 0.2 5.7 4.48 A
ISO 4017 hexagon head screw M5x16 5 0.8 16 13.6 8 8.79 3.5 7.2 0.2 5.7 4.48 A
ISO 4017 hexagon head screw M5x20 5 0.8 20 17.6 8 8.79 3.5 7.2 0.2 5.7 4.48 A
ISO 4017 hexagon head screw M5x25 5 0.8 25 22.6 8 8.79 3.5 7.2 0.2 5.7 4.48 A
ISO 4017 hexagon head screw M5x30 5 0.8 30 27.6 8 8.79 3.5 7.2 0.2 5.7 4.48 A
ISO 4017 hexagon head screw M5x35 5 0.8 35 32.6 8 8.79 3.5 7.2 0.2 5.7 4.48 A
ISO 4017 hexagon head screw M5x40 5 0.8 40 37.6 8 8.79 3.5 7.2 0.2 5.7 4.48 A
ISO 4017 hexagon head screw M5x45 5 0.8 45 42.6 8 8.79 3.5 7.2 0.2 5.7 4.48 A
ISO 4017 hexagon head screw M5x50 5 0.8 50 47.6 8 8.79 3.5 7.2 0.2 5.7 4.48 A
ISO 4017 hexagon head screw M6x12 6 1 12 9 10 11.05 4 8.88 0.25 6.8 5.35 A
ISO 4017 hexagon head screw M6x16 6 1 16 13 10 11.05 4 8.88 0.25 6.8 5.35 A
ISO 4017 hexagon head screw M6x20 6 1 20 17 10 11.05 4 8.88 0.25 6.8 5.35 A
ISO 4017 hexagon head screw M6x25 6 1 25 22 10 11.05 4 8.88 0.25 6.8 5.35 A
ISO 4017 hexagon head screw M6x30 6 1 30 27 10 11.05 4 8.88 0.25 6.8 5.35 A
ISO 4017 hexagon head screw M6x35 6 1 35 32 10 11.05 4 8.88 0.25 6.8 5.35 A
ISO 4017 hexagon head screw M6x40 6 1 40 37 10 11.05 4 8.88 0.25 6.8 5.35 A
ISO 4017 hexagon head screw M6x45 6 1 45 42 10 11.05 4 8.88 0.25 6.8 5.35 A
ISO 4017 hexagon head screw M6x50 6 1 50 47 10 11.05 4 8.88 0.25 6.8 5.35 A
ISO 4017 hexagon head screw M6x55 6 1 55 52 10 11.05 4 8.88 0.25 6.8 5.35 A
ISO 4017 hexagon head screw M6x60 6 1 60 57 10 11.05 4 8.88 0.25 6.8 5.35 A
ISO 4017 hexagon head screw M7x16 7 1 16 13 11 12.12 4.8 9.63 0.25 7.8 6.35 A
ISO 4017 hexagon head screw M7x20 7 1 20 17 11 12.12 4.8 9.63 0.25 7.8 6.35 A
ISO 4017 hexagon head screw M7x25 7 1 25 22 11 12.12 4.8 9.63 0.25 7.8 6.35 A
ISO 4017 hexagon head screw M7x30 7 1 30 27 11 12.12 4.8 9.63 0.25 7.8 6.35 A
ISO 4017 hexagon head screw M7x35 7 1 35 32 11 12.12 4.8 9.63 0.25 7.8 6.35 A
ISO 4017 hexagon head screw M7x40 7 1 40 37 11 12.12 4.8 9.63 0.25 7.8 6.35 A
ISO 4017 hexagon head screw M7x45 7 1 45 42 11 12.12 4.8 9.63 0.25 7.8 6.35 A
ISO 4017 hexagon head screw M7x50 7 1 50 47 11 12.12 4.8 9.63 0.25 7.8 6.35 A
ISO 4017 hexagon head screw M7x55 7 1 55 52 11 12.12 4.8 9.63 0.25 7.8 6.35 A
ISO 4017 hexagon head screw M7x60 7 1 60 57 11 12.12 4.8 9.63 0.25 7.8 6.35 A
ISO 4017 hexagon head screw M7x65 7 1 65 62 11 12.12 4.8 9.63 0.25 7.8 6.35 A
ISO 4017 hexagon head screw M7x70 7 1 70 67 11 12.12 4.8 9.63 0.25 7.8 6.35 A
ISO 4017 hexagon head screw M8x16 8 1.25 16 12.25 13 14.38 5.3 11.63 0.4 9.2 7.188 A
ISO 4017 hexagon head screw M8x20 8 1.25 20 16.25 13 14.38 5.3 11.63 0.4 9.2 7.188 A
ISO 4017 hexagon head screw M8x25 8 1.25 25 21.25 13 14.38 5.3 11.63 0.4 9.2 7.188 A
ISO 4017 hexagon head screw M8x30 8 1.25 30 26.25 13 14.38 5.3 11.63 0.4 9.2 7.188 A
ISO 4017 hexagon head screw M8x35 8 1.25 35 31.25 13 14.38 5.3 11.63 0.4 9.2 7.188 A
ISO 4017 hexagon head screw M8x40 8 1.25 40 36.25 13 14.38 5.3 11.63 0.4 9.2 7.188 A
ISO 4017 hexagon head screw M8x45 8 1.25 45 41.25 13 14.38 5.3 11.63 0.4 9.2 7.188 A
ISO 4017 hexagon head screw M8x50 8 1.25 50 46.25 13 14.38 5.3 11.63 0.4 9.2 7.188 A
ISO 4017 hexagon head screw M8x55 8 1.25 55 51.25 13 14.38 5.3 11.63 0.4 9.2 7.188 A
ISO 4017 hexagon head screw M8x60 8 1.25 60 56.25 13 14.38 5.3 11.63 0.4 9.2 7.188 A
ISO 4017 hexagon head screw M8x65 8 1.25 65 61.25 13 14.38 5.3 11.63 0.4 9.2 7.188 A
ISO 4017 hexagon head screw M8x70 8 1.25 70 66.25 13 14.38 5.3 11.63 0.4 9.2 7.188 A
ISO 4017 hexagon head screw M8x80 8 1.25 80 76.25 13 14.38 5.3 11.63 0.4 9.2 7.188 A
ISO 4017 hexagon head screw M10x20 10 1.5 20 15.5 16 17.77 6.4 14.63 0.4 11.2 9.026 A
ISO 4017 hexagon head screw M10x25 10 1.5 25 20.5 16 17.77 6.4 14.63 0.4 11.2 9.026 A
ISO 4017 hexagon head screw M10x30 10 1.5 30 25.5 16 17.77 6.4 14.63 0.4 11.2 9.026 A
ISO 4017 hexagon head screw M10x35 10 1.5 35 30.5 16 17.77 6.4 14.63 0.4 11.2 9.026 A
ISO 4017 hexagon head screw M10x40 10 1.5 40 35.5 16 17.77 6.4 14.63 0.4 11.2 9.026 A