Dimensional Standard of Bolts Per ISO 4017
• For hot-dip galvanized nuts, the dimensions apply before galvanizing.
• P is the pitch of thread.
• dw, max. = actual
• β = 15⁰ to 30⁰
• Incomplete thread u = 2P
|
Size |
Pitch (p) |
Width across corner (e) |
Width across Flat (s) |
Head Thickness (k) |
Thread Length b |
Transition Diameter da |
Dia. of washer face dw |
Radius under head r |
Depth of washer face c |
Major Diameter (D) |
Pitch Diameter (D1) |
Minor Diameter (D2) |
|||||
|
MM |
Min. |
Min. |
Max. |
Min. |
Max. |
- |
Max. |
Min. |
Min. |
Min. |
Max. |
Min. |
Min. |
Min. |
Max. |
Min. |
|
|
M-16 |
2.0 |
26.17 |
23.16 |
24 |
9.71 |
10.29 |
FT |
17.70 |
22.00 |
0.6 |
0.2 |
0.8 |
15.68 |
15.96 |
14.50 |
14.60 |
13.80 |
|
M-18 |
2.5 |
29.56 |
26.16 |
27 |
11.15 |
11.85 |
FT |
20.20 |
24.85 |
0.6 |
0.2 |
0.8 |
17.62 |
17.96 |
16.15 |
16.25 |
15.25 |
|
M-20 |
2.5 |
32.95 |
29.16 |
30 |
12.15 |
12.85 |
FT |
22.40 |
27.70 |
0.8 |
0.2 |
0.8 |
19.62 |
19.96 |
18.15 |
18.25 |
17.25 |
|
M-22 |
2.5 |
37.29 |
33.00 |
34 |
13.65 |
14.35 |
FT |
24.40 |
31.35 |
0.8 |
0.2 |
0.8 |
21.62 |
21.96 |
20.15 |
20.25 |
19.25 |
|
M-24 |
3.0 |
39.55 |
35.00 |
36 |
14.65 |
15.35 |
FT |
26.40 |
33.25 |
0.8 |
0.2 |
0.8 |
23.58 |
23.95 |
21.80 |
21.90 |
20.70 |
|
M-27 |
3.0 |
45.20 |
40.00 |
41 |
16.65 |
17.35 |
FT |
30.40 |
38.00 |
1.0 |
0.2 |
0.8 |
26.58 |
26.95 |
24.80 |
24.90 |
23.70 |
|
M30 |
3.5 |
50.85 |
45.00 |
46 |
18.28 |
19.12 |
FT |
33.40 |
42.75 |
1.0 |
0.2 |
0.8 |
29.52 |
29.95 |
27.50 |
27.60 |
26.16 |
|
M-33 |
3.5 |
55.37 |
49.00 |
50 |
20.58 |
21.42 |
FT |
36.40 |
46.55 |
1.0 |
0.2 |
0.8 |
32.52 |
32.95 |
30.50 |
30.60 |
29.16 |
|
M-36 |
4.0 |
60.79 |
53.80 |
55 |
22.08 |
22.92 |
FT |
39.40 |
51.11 |
1.0 |
0.2 |
0.8 |
35.46 |
35.94 |
33.15 |
33.25 |
31.61 |
|
M-39 |
4.0 |
66.44 |
58.80 |
60 |
24.58 |
25.42 |
FT |
42.40 |
55.86 |
1.0 |
0.3 |
1.0 |
38.46 |
38.94 |
36.20 |
36.30 |
34.61 |
|
M-42 |
4.5 |
71.30 |
63.10 |
65 |
25.58 |
26.42 |
FT |
45.60 |
59.95 |
1.2 |
0.3 |
1.0 |
41.44 |
41.94 |
38.80 |
38.90 |
37.07 |
|
M-45 |
4.5 |
76.95 |
68.10 |
70 |
27.58 |
28.42 |
FT |
48.60 |
64.70 |
1.2 |
0.3 |
1.0 |
44.44 |
44.94 |
41.80 |
41.90 |
40.07 |
|
M-48 |
5.0 |
82.60 |
73.10 |
75 |
29.58 |
30.42 |
FT |
52.60 |
69.45 |
1.6 |
0.3 |
1.0 |
47.40 |
47.93 |
44.50 |
44.60 |
42.52 |
|
M-52 |
5.0 |
88.25 |
78.10 |
80 |
32.50 |
33.50 |
FT |
56.60 |
74.20 |
1.6 |
0.3 |
1.0 |
51.40 |
51.93 |
48.50 |
48.60 |
46.52 |
|
M-56 |
5.5 |
93.56 |
82.80 |
85 |
34.50 |
35.50 |
FT |
63.00 |
78.66 |
2.0 |
0.3 |
1.0 |
55.36 |
55.92 |
52.10 |
52.20 |
49.97 |
|
M-60 |
5.5 |
99.21 |
87.80 |
90 |
37.50 |
38.50 |
FT |
67.00 |
83.41 |
2.0 |
0.3 |
1.0 |
59.36 |
59.92 |
57.85 |
57.95 |
53.97 |
|
M-64 |
6.0 |
104.86 |
92.80 |
95 |
39.50 |
40.50 |
FT |
71.00 |
88.16 |
2.0 |
0.3 |
1.0 |
63.32 |
63.92 |
59.80 |
59.90 |
57.42 |
Bolt Shank Length Ls & Lg
|
L |
Total Length |
Total Length |
Full threading length |
Ls |
Lg |
|
Nominal length |
Min. |
Max. |
Min -Max. |
Min -Max. |
Min -Max. |
|
70 |
68.50 |
71.50 |
F.T |
NA |
NA |
|
80 |
78.50 |
81.50 |
F.T |
NA |
NA |
|
90 |
88.25 |
91.75 |
F.T |
NA |
NA |
|
100 |
98.25 |
101.75 |
F.T |
NA |
NA |
|
110 |
108.25 |
111.75 |
F.T |
NA |
NA |
|
120 |
118.25 |
121.75 |
F.T |
NA |
NA |
|
130 |
128.00 |
132.00 |
F.T |
NA |
NA |
|
140 |
138.00 |
142.00 |
F.T |
NA |
NA |
|
150 |
148.00 |
152.00 |
F.T |
NA |
NA |
|
160 |
158.00 |
162.00 |
F.T |
NA |
NA |
|
170 |
168.00 |
172.00 |
F.T |
NA |
NA |
|
180 |
178.00 |
182.00 |
F.T |
NA |
NA |
|
190 |
188.00 |
192.00 |
F.T |
NA |
NA |
|
200 |
197.70 |
202.30 |
F.T |
NA |
NA |
|
210 |
207.70 |
212.30 |
F.T |
NA |
NA |
|
220 |
217.70 |
222.30 |
F.T |
NA |
NA |
|
230 |
227.70 |
232.30 |
F.T |
NA |
NA |
|
240 |
237.70 |
242.30 |
F.T |
NA |
NA |
|
250 |
247.70 |
252.30 |
F.T |
NA |
NA |
|
260 |
257.40 |
262.60 |
F.T |
NA |
NA |
|
270 |
267.40 |
272.60 |
F.T |
NA |
NA |
|
280 |
277.40 |
282.60 |
F.T |
NA |
NA |
|
290 |
287.40 |
292.60 |
F.T |
NA |
NA |
|
300 |
297.40 |
302.60 |
F.T |
NA |
NA |
|
310 |
307.40 |
312.60 |
F.T |
NA |
NA |
|
320 |
317.15 |
322.85 |
F.T |
NA |
NA |
|
330 |
327.15 |
332.85 |
F.T |
NA |
NA |
|
340 |
337.15 |
342.85 |
F.T |
NA |
NA |
|
350 |
347.15 |
352.85 |
F.T |
NA |
NA |
|
360 |
357.15 |
362.85 |
F.T |
NA |
NA |
|
370 |
367.15 |
372.85 |
F.T |
NA |
NA |
|
380 |
377.15 |
382.85 |
F.T |
NA |
NA |
|
390 |
387.15 |
392.85 |
F.T |
NA |
NA |
|
400 |
397.15 |
402.85 |
F.T |
NA |
NA |
|
410 |
407.15 |
412.85 |
F.T |
NA |
NA |
|
420 |
416.85 |
423.15 |
F.T |
NA |
NA |
|
430 |
426.85 |
433.15 |
F.T |
NA |
NA |
|
440 |
436.85 |
443.15 |
F.T |
NA |
NA |
|
450 |
446.85 |
453.15 |
F.T |
NA |
NA |
|
460 |
456.85 |
463.15 |
F.T |
NA |
NA |
|
470 |
466.85 |
473.15 |
F.T |
NA |
NA |
|
480 |
476.85 |
483.15 |
F.T |
NA |
NA |
|
490 |
486.85 |
493.15 |
F.T |
NA |
NA |
|
500 |
496.85 |
503.15 |
F.T |
NA |
NA |