Inconel 718 Hex Flange Bolts to EN 1665 Hexagon Head Bolt With Flange

EN 1665 Hexagon bolt with flanged solid shank (standard desgin)
EN 1665 Hexagon bolt with flange - Reduced shank, form R (By arrangement)
EN 1665 Hexagon bolt with flange - Reduced shank, form R (By arrangement)

EN 1665 Hexagon Head Bolt With Flange Dimensions

Dimensions shall be in accordance with Figure 1 to Figure 3 and Table 1. NOTE Symbols and designations of dimensions are specified in EN20225

Dimensions in millimetres

Thread (d) M5 M6 M8 M10 M12 (M14)1 M16 M20
P2 0.8 1 1.25 1.5 1.75 2 2 2.5
b(ref) 3 16 18 22 26 30 34 38 46
4 -- -- 28 32 36 40 44 52
5 -- -- -- -- -- -- 57 55
c min. 1 1.1 1.2 1.5 1.8 2.1 2.4 3
da Type F max. 5.7 6.8 9.2 11.2 13.7 15.7 17.7 22.4
Type U 6.2 7.5 10 12.5 15.2 17.7 20.5 25.7
dc max. 11.8 14.2 18 22.3 26.6 30.5 35 43
ds max. 5.00 6.00 8.00 10.00 12.00 14.00 16.00 20.00
min. 4.82 5.82 7.78 9.78 11.73 13.73 15.73 19.67
dv max. 5.5 6.6 8.8 10.8 12.8 14.8 17.2 21.6
dw min. 9.8 12.2 15.8 19.6 23.8 27.6 31.9 39.9
e min. 8.71 10.95 14.26 17.62 19.86 23.15 26.51 33.23
k max. 5.8 6.6 8.1 10.4 11.8 13.7 15.4 18.9
kw min. 2.6 3.0 3.9 4.1 5.6 6.5 7.3 8.9
lr max. 1.4 1.6 2.1 2.1 2.1 2.1 3.2 4.2
r1 min. 0.2 0.25 0.4 0.4 0.6 0.6 0.6 0.8
r2(18) max. 0.3 0.4 0.5 0.6 0.7 0.9 1 1.2
r3 max. 0.25 0.26 0.36 0.45 0.54 0.63 0.72 0.9
min. 0.10 0.11 0.16 0.20 0.24 0.28 0.32 0.4
r4 (ref.) 4 4.4 5.7 5.7 5.7 5.7 8.8 11.4
s max. 8.00 10.00 13.00 16.00 18.00 21.00 24.00 30.00
min. 7.78 9.78 12.73 14.73 17.73 20.67 23.67 29.67
v max. 0.15 0.20 0.25 0.30 0.35 0.45 0.50 0.65
min. 0.05 0.05 0.10 0.15 0.15 0.20 0.25 0.30
l(7)(8) ls and lg(9)
nom.
length
min. max. ls
min.
lg
max.
ls
min.
lg
max.
ls
min.
lg
max.
ls
min.
lg
max.
ls
min.
lg
max.
ls
min.
lg
max.
ls
min.
lg
max.
ls
min.
lg
max.
10 9.71 10.29 --

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12 11.65 12.35
16 15.65 16.35
20 19.58 20.42 -- -- -- -- -- -- -- --
25 24.58 25.42 5 9 -- -- -- -- -- -- -- --
30 29.58 30.42 10 14 7 12 -- -- -- -- -- -- -- --
35 34.5 35.5 15 19 12 17 6.75 13 -- -- -- -- -- -- -- -- -- --
40 39.5 40.5 20 24 17 22 11.75 18 6.5 14 -- -- -- -- -- -- -- --
45 44.5 45.5 25 29 22 27 16.75 23 11.5 19 6.25 15 -- -- -- -- -- --
50 49.5 50.5 30 34 27 32 21.75 28 16.5 24 11.25 20 6 16 -- -- -- --
55 54.4 55.6 32 37 26.75 33 21.5 29 16.25 25 11 21 7 17
60 59.4 60.6 37 42 31.75 38 26.5 34 21.25 30 16 26 12 22
65 64.4 65.6 36.75 43 31.5 39 26.25 35 21 31 17 27 6.5 19
70 69.4 70.6 41.75 48 36.5 44 31.25 40 26 36 22 32 11.5 24
80 79.4 80.6 51.75 58 46.5 54 41.25 50 36 46 32 42 21.5 34
90 89.3 90.7 56.5 64 51.25 60 46 56 42 52 31.5 44
100 99.3 100.7 66.5 74 61.25 70 56 66 52 62 41.5 54
110 109.3 110.7 71.25 80 66 76 62 72 51.5 64
120 119.3 120.7 81.25 90 76 86 72 82 61.5 74
130 129.2 130.8 80 90 76 86 65.5 78
140 139.2 140.8 90 100 86 96 75.5 88
150 149.2 150.8 96 106 85.5 98
160 159.2 160.8 106 116 95.5 108
180 179.2 180.8 115.5 128
180 179.2 180.8 135.5 148

NOTE If the product passes the gauging in Annex A, the requirements for dimensions e amd Kw are satisfied.

  • The Size in Parentheses should be avoided if possible.
  • P is the pitch of the thread
  • For Lengths lnom ≤ 125 mm.
  • For Lengths 125 mm < lnom ≤ 200 mm.
  • For lengths lnom > 200 mm.
  • Radius r2 applies both at the corners and at the flats of the hexagon.
  • Screws with lengths shown above the thick stepped line are threaded to head.
  • Reduced shank type (type R) onky below the dashed stepped line.
  • lg is the minimum grip length.