Болты с полукруглой головкой
ГОСТ 7783 – 81
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Болты с полукруглой головкой и усом класса точности С |
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d | D | k | R≈ | d1 (h15) |
h не менее |
V | W не менее |
b | |
l ≤120 | l >120 | ||||||||
5 | 10 | 4 | 6 | 5 | 2,5 | 2 | 1,8 | 16 | – |
6 | 12 | 5 | 7 | 6 | 3 | 2,5 | 2 | 18 | – |
8 | 16 | 6 | 9 | 8 | 4 | 3 | 2,3 | 22 | – |
10 | 20 | 7 | 10,5 | 10 | 5 | 3,2 | 2,7 | 26 | 32 |
12 | 24 | 9,2 | 13,3 | 12 | 6 | 3,6 | 3,2 | 30 | 36 |
16 | 32 | 11,2 | 15,8 | 16 | 8 | 4,2 | 3,5 | 38 | 44 |
20 | 40 | 16 | 21 | 20 | 10 | 4,7 | 4,0 | 46 | 52 |
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Стандартные длины | |||||||
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l | Номинальный диаметр d | ||||||
5 | 6 | 8 | 10 | 12 | 16 | 20 | |
16 | × | × | × | – | – | – | – |
20 | × | × | × | × | – | – | – |
25 | × | × | × | × | × | × | – |
30 | × | × | × | × | × | × | – |
35 | × | × | × | × | × | × | – |
40 | × | × | × | × | × | × | – |
45 | × | × | × | × | × | × | × |
50 | × | × | × | × | × | × | × |
55 | × | × | × | × | × | × | × |
60 | × | × | × | × | × | × | × |
65 | × | × | × | × | × | × | × |
70 | × | × | × | × | × | × | × |
75 | × | × | × | × | × | × | × |
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