This product guide contains the specification for metric threaded socket head cap screws, a series of standard parts available from Westfield Fasteners. The basis of this specification is the DIN standard DIN 912.
Thread, d | M1.6 | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M20 | M24 | M30 | M36 | M42 | M48 | M56 | M64 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
p | 0.35 | 0.4 | 0.45 | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | |
b | ref. | 15 | 16 | 17 | 18 | 20 | 22 | 24 | 28 | 32 | 36 | 40 | 44 | 52 | 60 | 72 | 84 | 96 | 108 | 124 | 140 |
dk | max | 3.00 | 3.80 | 4.50 | 5.50 | 7.00 | 8.50 | 10.00 | 13.00 | 16.00 | 18.00 | 21.00 | 24.00 | 30.00 | 36.00 | 45.00 | 54.00 | 63.00 | 72.00 | 84.00 | 96.00 |
max | 3.14 | 3.98 | 4.68 | 5.68 | 7.22 | 8.72 | 10.22 | 13.27 | 16.27 | 18.27 | 21.33 | 24.00 | 30.33 | 36.39 | 45.39 | 54.46 | 63.46 | 72.46 | 84.54 | 96.54 | |
min | 2.86 | 3.62 | 4.32 | 5.32 | 6.78 | 8.28 | 9.78 | 13.73 | 15.73 | 17.73 | 20.67 | 23.67 | 29.67 | 35.61 | 44.61 | 53.54 | 62.54 | 71.54 | 83.46 | 95.46 | |
da | max | 2 | 2.6 | 3.1 | 3.6 | 4.7 | 5.7 | 6.8 | 9.2 | 11.2 | 13.7 | 15.7 | 17.7 | 22.4 | 26.4 | 33.4 | 39.4 | 45.6 | 52.6 | 63.0 | 71.0 |
ds | max | 1.60 | 2.00 | 2.50 | 3.00 | 4.00 | 5.00 | 6.00 | 8.00 | 10.00 | 12.00 | 14.00 | 16.00 | 20.00 | 24.00 | 30.00 | 36.00 | 42.00 | 48.00 | 56.00 | 64.00 |
min | 1.46 | 1.86 | 2.36 | 2.86 | 3.82 | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | 19.67 | 23.67 | 29.67 | 35.67 | 41.61 | 47.61 | 55.54 | 63.54 | |
e | min | 1.733 | 1.733 | 2.303 | 2.873 | 3.443 | 4.583 | 5.723 | 6.863 | 9.149 | 11.429 | 13.716 | 15.996 | 19.437 | 21.734 | 25.154 | 30.854 | 36.571 | 41.131 | 46.831 | 52.531 |
lf | max | 0.34 | 0.51 | 0.51 | 0.51 | 0.6 | 0.6 | 0.68 | 1.02 | 1.02 | 1.45 | 1.45 | 1.45 | 2.04 | 2.04 | 2.89 | 2.89 | 3.06 | 3.91 | 5.95 | 5.95 |
k | max | 1.60 | 2.00 | 2.50 | 3.00 | 4.00 | 5.00 | 6.00 | 8.00 | 10.00 | 12.00 | 14.00 | 16.00 | 20.00 | 24.00 | 30.00 | 36.00 | 42.00 | 48.00 | 56.00 | 64.00 |
min | 1.64 | 1.86 | 2.36 | 2.86 | 3.82 | 4.82 | 5.7 | 7.64 | 9.64 | 11.57 | 13.57 | 15.57 | 19.48 | 23.48 | 29.48 | 35.38 | 41.38 | 47.38 | 55.26 | 63.26 | |
r | min | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.4 | 0.4 | 0.6 | 0.6 | 0.6 | 0.8 | 0.8 | 1 | 1 | 1.2 | 1.6 | 2 | 2 |
s | nom | 1.5 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 17 | 19 | 22 | 27 | 32 | 36 | 41 | 46 |
max | 1.58 | 1.58 | 2.08 | 2.58 | 3.08 | 4.095 | 5.14 | 6.14 | 8.175 | 10.175 | 12.212 | 14.212 | 17.230 | 19.275 | 22.275 | 27.275 | 32.330 | 36.330 | 41.33 | 46.33 | |
min | 1.52 | 1.52 | 2.02 | 2.52 | 3.02 | 4.020 | 5.02 | 6.02 | 8.025 | 10.025 | 12.032 | 14.032 | 17.050 | 19.065 | 22.065 | 27.065 | 32.080 | 36.080 | 41.080 | 46.080 | |
t | min | 0.7 | 1 | 1.1 | 1.3 | 2 | 2.5 | 3 | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 15.5 | 19 | 24 | 28 | 34 | 38 |
v | max | 0.16 | 0.2 | 0.25 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.2 | 1.4 | 1.6 | 2 | 2.4 | 3 | 3.6 | 4.2 | 4.8 | 5.6 | 6.4 |
dw | min | 2.72 | 3.48 | 4.18 | 5.07 | 6.53 | 8.03 | 9.38 | 12.33 | 15.33 | 17.23 | 20.17 | 23.17 | 28.87 | 34.81 | 43.61 | 52.54 | 61.34 | 70.34 | 82.26 | 94.26 |
w | min | 0.55 | 0.55 | 0.85 | 1.15 | 1.4 | 1.9 | 2.3 | 3.3 | 4 | 4.8 | 5.8 | 6.8 | 8.6 | 10.4 | 13.1 | 15.3 | 16.3 | 17.5 | 19 | 22 |
shank length (mm) | +/- (mm) |
---|---|
2.5-3 | 0.2 |
4-6 | 0.24 |
8-10 | 0.29 |
12-16 | 0.35 |
20-30 | 0.42 |
35-50 | 0.5 |
55-80 | 0.6 |
90-120 | 0.7 |
130-180 | 0.8 |
200-240 | 0.9 |
260-300 | 1.05 |