GOST 7798-70
Hex Bolt, precision class B GOST 7798-70 applied in mechanical engineering, instrumentation, and construction as part connections. Steel grades: 10kp, 20kp, 10, 20, 35, 20G2R, 40H, 30HR. Accuracy: B. Tolerance thread: 6g. Strength class: 4.8, 5.8, 8.8, 10.9. Analogues of the Standard: GOST 7805-70 , GOST 15589-70 .
Close analogues (ISO, DIN, EN ISO): Standard
Name
Note
Hexagon bolt
DIN 931 (EN ISO 4014)
Almost exactly the same. There are slight differences in some parameters.
and part-time thread
DIN 933 (EN ISO 4017)
Hexagon bolt
DIN 933 (EN ISO 4017) with full bolt thread. For this reason, the main difference is
and the full
associated with the length of the threaded part. For the types of dimensions in GOST
thread
7798-70 , which corresponds to the length of the threaded bolt DIN 933 (EN ISO 4017) can be used as a complete analog.
GOST 7798-70
Parameters of the
Nominal thread diameter d
bolt
M6
Pitch, P
large
M10
M12
M14
*
*
*
1.25
1.5
1.75
2
2
2.5
2.5
2.5
3
3
3.5
4
4.5
5
A
1.25
1.25
1.5
1.5
1.5
1.5
1.5
2
2
2
3
3
3
10
13
17
19
22
24
27
30
32
36
41
46
55
65
75
6
8
10
12
14
16
18
20
22
24
27
30
36
42
48
A
small The size of a key, S Diameter, d1
M8
M16
M18
M20
M22 M24 M27 M30 M36 M42 M48 *
Head height, k
4
5.3
6.4
7.5
8.8
10
12
12.5
14
10.9
14.2
18.7
20.9
24
26.2
29.6
33
35
39.6 45.2 50.9 60.8 71.3 82.6
hw, not less
0.15
0.15
0.15
0.15
0.15
0.2
0.2
0.2
0.2
0.2
0.2
0.2
dw, not less
8.7
11.5
15.5
17.2
20.1
22
24.8
27.7
29.5 33.2
38
42.7 51.1 59.9 69.4
18
22
26
30
34
38
42
46
50
54
60
66
78
90
102
32
36
40
44
48
52
56
60
66
72
84
96
108
49
53
57
61
65
69
73
79
85
97
109
121
The diameter of the
15
17
18.7 22.5
26
30
circumscribed circle of e, at least
The length
L≤
of the
125
threaded part, b
125
-
0.2
0.25 0.25
≤ 200 L> 200
-
-
All parameters in the table are in mm. * 01.01.1991g. in GOST amended, provides for the possibility of making the size of M10, M12, M14, M22 with the following changes in the parameters for the remaining unchanged:
Parameters of the bolt
Nominal thread diameter d
M10
M12
M14
M22
16
18
21
34
The diameter of the circumscribed circle of e, at least
17.6
19.9
22.8
37.3
dw, not less
14.5
16.5
19.2
31.4
The size of a key, S
If you need to consider these options when ordering a product with a nominal size specified in table ask the managers to specify these parameters, as well as the weight of such products. Weight bolts GOST 7798-70 (large pitch). Weight of size M10, M12, M14, M22 is specified in accordance with the parameters of their production according to a table.
Screw length l, mm
The theoretical mass of 1000 pc. bolts kg. at a nominal thread diameter d
M6
10
4.712
M8
9.62
M10
M12
M14
M16
M18
M20
M2
M2
M2
M3
M3
M4
M4
2
4
7
0
6
2
8
19.28
4 14
5.524
11.0
21.56
8 16
20
5.93
6.742
11.8
13.2
3 22.7
24.97
5 25
7.871
15.0
27.82
7 30
8.981
17.3
30.9
30.66
32.5
47.1
7
8
35.8
51.6
68.4
95.8
5
5
9
1
39.9
57.2
75.8
105.
136.
5
5
7
1
4
44.0
62.8
83.2 114.3 147. 180
5 35
10.09
5
19.3 33.88 2
40
45
11.2
12.31
21.3 36.96
23.2 40.05 7
50
13.42
14.53
25.2 43.13
27.2 46.22
65
15.64
16.76
29.2
49.3
31.1 52.39 7
70
17.87
33.1 55.47 4
75
18.98
35.1 58.56 2
80
20.09
37.0 61.64 9
85
21.2
39.0 64.73 7
90
22.31
41.0 67.81 4
95
43.0
70.9
2 100
68.4
90.6
123.
3
4
2
6
52.8
74.4
97.9
132.
7
5
9
9
57.3
80.5
105.
142.
7
1
61.7
86.5
113.
152.
6
5
6
4
66.2
92.5
121.
162.
9
5
4
70.6
98.6
129.
172.
4
4
4
4
75.0
104.
137.
182.
8
7
3
4
79.5
110.
145.
192.
3
7
2
4
83.9
116.
153.
202.
7
8
1
4
88.4
122.
161
212.
2
8
92.8
128.
168.
222.
6
9
9
4
97.2
134.
176.
232.
9
9
8
4
101.
141
184.
242.
7
4
192.
252.
6
4
7
44.9 73.98 9
105
110
115
120
125
130
140
106.
147
2 77.07
80.15
83.23
86.32
89.4
92.49
98.66
9
48.4
2 60
4
1
5 55
4
4
110.
153.
200.
262.
6
1
5
4
115.
159.
208.
272.
1
1
4
3
119.
165.
216.
282.
5
2
3
3
124
171.
224.
292.
2
2
3
128.
177.
232.
302.
4
2
1
3
132.
183.
240
312.
8
3
141.
195.
255.
332.
7
4
8
3
3
.6
159. 194 246 340 4
.6
.9
.6
170. 208 263 361 479 9
.6
.5
.8
.1
182. 222 280 373 505 5
.6
.1
.2
194 236 296 404 531 844 .6
.7
.1
.2
.8
206. 250 313 425 557 882 130 8
.7
.3
.3
.3
.4
4
219. 266 329 446 583 920 135 1
.5
.9
.5
.3
.1
6
231. 281 348 467 609 957 140 200 5
.4
.8
.7
.4
.7
7
9
243. 296 366 491 635 995 145 207 8
.4
.5
.1
.4
.3
8
6
256. 311 384 513 664 103 150 214 1
.3
.3
.6
3
9
3
268. 326 402 536 691 107 156 221 1
.2
.1
.1
.8
1
1
1
280. 341 419 558 719 110 161 227 8
.2
.8
.6
.5
8
2
8
293. 356 437 581 747 115 166 234 2
.1
.6
.3
1
3
5
305. 371 455 603 775 119 171 241 5
.4
.5
.1
1
5
2
317. 385 473 626 802 123 176 247 8
.9
.2
.8
1
6
9
330. 400 490 648 830 127 182 254 2
.9
.9
.5
.6
1
6
6
342. 415 508 671 858 131 188 261 5
.8
.7
.4
1
0
4
354. 430 526 693 886 135 193 269 9
.7
.5
.5
.1
1
4
0
367. 445 544 716 913 139 198 276 2
.7
.2
.9
1
9
0
379. 460 562 738 941 143 204 283 5
.6
.5
.7
1
3
1
391. 475 579 761 969 147 209 290 9
.5
.8
.5
1
8
3
416. 505 615 806 102 155 220 304 6
.4
.3
5
1
7
5
150
160
170
180
190
200
220
240
260
280
300
104.8
111
117.2
123.3
129.5
135.7
150.
207.
271.
352.
6
5
6
3
159.
219.
287.
372.
5
6
4
3
168.
231.
303.
392.
4
7
2
3
177.
243.
319
412.
3
8
186.
255.
333.
432.
2
9
8
3
195
267.
350.
452.
9
6
2
212.
292.
382.
492.
8
1
2
2
230.
316.
413.
532.
6
3
8
2
248.
340.
445.
572.
3
5
4
2
364.
476.
612.
7
9
2
388.
508.
652.
9
5
2
3
441. 535 650 850 108 163 231 318 2
.2
.8
.1
0
1
7
465. 565 686 895 113 171 242 332 9
.1
.4
.9
6
1
4
9
490. 595 721 940 119 179 253 347 6
.9
.9
2
0
3
1
515. 624 757 985 124 187 264 361 3
.8
.5
.9
7
0
2
4
540 654 793 103 130 195 275 375 .7
1
3
0
1
6
564. 684 828 107 135 203 286 389 6
.6
.6
6
8
0
0
8
614 744 899 116 146 219 307 418 .3
.6
6
9
0
7
2
663. 804 970 125 158 235 329 446 4
.8
6
0
0
5
6
712. 863 104 134 169 251 351 475 7
.7
762. 923 1
.5
2
6
1
0
3
1
111 143 180 267 373 503 3
6
2
0
0
5
811. 983 118 152 191 283 394 531 4
.2
4
6
4
0
For more information on the technical characteristics of the bolt can be obtained from the managers of the company © 2009-2011 «Stroymetiz"
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