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DINCurrentDraft · single source

DIN 7984

Hexagon socket head cap screws with low head

National equivalents
UNI 9327
Head · drive
Low cylindrical head · Hexagon socket (Allen)
Thread
Metric ISO coarse thread
Tolerance
6g
Property classes
8.810.9A2A4
Materials
SteelStainless

Dimensions

mm · values as the standard states them
SizePdsdksekb125 < l ≤ 200bl > 200bl ≤ 125dwdartfv
M30.5
3
2.86 – 3
5.5
5.32 – 5.5
2
2.02 – 2.1
≥ 2.3
2
1.86 – 2
—
—
12
≥ 4.84
≤ 3.6
≥ 0.1
1.5
1.38 – 1.62
≤ 0.51
≤ 0.3
M40.7
4
3.82 – 4
7
6.78 – 7
2.5
2.52 – 2.6
≥ 2.87
2.8
2.66 – 2.8
—
—
14
≥ 6.2
≤ 4.7
≥ 0.2
2.3
2.18 – 2.42
≤ 0.6
≤ 0.4
M50.8
5
4.82 – 5
8.5
8.28 – 8.5
3
3.02 – 3.1
≥ 3.44
3.5
3.32 – 3.5
—
—
16
≥ 7.7
≤ 5.7
≥ 0.2
2.7
2.58 – 2.82
≤ 0.6
≤ 0.5
M61
6
5.82 – 6
10
9.78 – 10
4
4.02 – 4.12
≥ 4.58
4
3.82 – 4
—
—
18
≥ 9.2
≤ 6.8
≥ 0.25
3
2.88 – 3.12
≤ 0.68
≤ 0.6
M81.25
8
7.7 – 8
13
12.73 – 13
5
5.02 – 5.14
≥ 5.72
5
4.82 – 5
28
—
22
≥ 12.03
≤ 9.2
≥ 0.4
3.8
3.62 – 3.95
≤ 1.02
≤ 0.8
M101.5
10
9.78 – 10
16
15.73 – 16
7
7.025 – 7.175
≥ 8.01
6
5.82 – 6
32
—
26
≥ 15.03
≤ 11.2
≥ 0.4
4.5
4.35 – 4.65
≤ 1.02
≤ 1
M121.75
12
11.73 – 12
18
17.73 – 18
8
8.025 – 8.175
≥ 9.15
7
6.78 – 7
36
—
30
≥ 17.03
≤ 13.7
≥ 0.6
5
4.85 – 5.15
≤ 1.87
≤ 1.2
(M14)2
14
13.73 – 14
21
20.67 – 21
10
10.025 – 10.175
≥ 11.43
8
7.78 – 8
40
—
34
≥ 19.83
≤ 15.7
≥ 0.6
5.3
5.15 – 5.45
≤ 1.87
≤ 1.4
M162
16
15.73 – 16
24
23.67 – 24
12
12.032 – 12.212
≥ 13.72
9
8.78 – 9
44
57
38
≥ 22.83
≤ 17.7
≥ 0.6
5.5
5.35 – 5.65
≤ 1.87
≤ 1.6
(M18)2.5
18
17.73 – 18
27
26.67 – 27
12
12.032 – 12.212
≥ 13.72
10
9.78 – 10
48
61
42
≥ 25.83
≤ 20.2
≥ 0.6
6.5
6.32 – 6.68
≤ 1.87
≤ 1.8
M202.5
20
19.67 – 20
30
29.67 – 30
14
14.032 – 14.212
≥ 16
11
10.73 – 11
52
65
46
≥ 28.83
≤ 22.4
≥ 0.8
7.5
7.32 – 7.68
≤ 2.04
≤ 2
(M22)2.5
22
21.67 – 22
33
32.61 – 33
14
14.032 – 14.212
≥ 16
12
11.73 – 12
56
69
50
≥ 31.61
≤ 24.4
≥ 0.8
8
7.82 – 8.18
≤ 2.04
≤ 2.2
M243
24
23.67 – 24
36
35.61 – 36
17
17.05 – 17.23
≥ 19.44
13
12.73 – 13
60
73
54
≥ 34.61
≤ 26.4
≥ 0.8
8
7.82 – 8.18
≤ 2.04
≤ 2.4

Ranges read min – max; ≤ / ≥ where the standard gives one limit, ≈ for approximate values. Sizes in (brackets) are non-preferred. Select a row for its size sheet.

Length tolerances

54.76 – 5.24
65.76 – 6.24
87.71 – 8.29
109.71 – 10.29
1211.65 – 12.35
1413.65 – 14.35
1615.65 – 16.35
1817.65 – 18.35
2019.58 – 20.42
2524.58 – 25.42
3029.58 – 30.42
3534.5 – 35.5
4039.5 – 40.5
4544.5 – 45.5
5049.5 – 50.5
5554.4 – 55.6
6059.4 – 60.6
7069.4 – 70.6
8079.4 – 80.6
9089.3 – 90.7
10099.3 – 100.7

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