UNI 7687 Estándar Dimensiones para Pan head machine screws with cross recess
Esta norma ha sido cancelada
Tornillos de cabeza cilíndrica empotrada. Rosca gruesa métrica ISO. Producto de grado A.
Dibujos dimensionales y diagramas técnicos
Dimensiones clave y parámetros técnicos
|
Dimensions in mm - source UNI 7687Withdrawn |
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| Publication date: 10 -1977 | |||||||
| d thread size |
P
|
dk nom=max | k min | k max |
recess No.
|
m Type H ref.
|
m Type Z ref.
|
|
M 2
|
0.4 | 4 | 1.48 | 1.72 |
1
|
2.5 | 2.11 |
|
M 2.5
|
0.45 | 5 | 1.88 | 2.12 |
1
|
2.7 | 2.9 |
| M 3 | 0.5 | 6 | 2.28 | 2.52 |
1
|
3.1 | 3.15 |
| M 3.5 |
0.6
|
7 | 2.58 | 2.82 |
2
|
4.2 | 3.91 |
| M 4 |
0.7
|
8 | 2.95 | 3.25 |
2
|
4.6 | 4.29 |
| M 5 |
0.8
|
10 | 3.65 | 3.95 |
2
|
5.3 | 4.7 |
| M 6 |
1
|
12 | 4.45 | 4.75 |
3
|
6.8 | 6.73 |
| M 8 |
1.25
|
16 | 5.85 | 6.15 |
4
|
9 | 8.46 |
| M 10 |
1.5
|
20 | 7.32 | 7.68 |
4
|
10.2 | 10 |
|
UNI 7687 - ≈ weigth in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercial items |
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| d thread size | M 2 | M 2.5 | M 3 | M 4 | M 5 | M 6 | M 8 | M 10 | ||
| nominal length l | ||||||||||
| 3 | 0.137 | 0.34 | ||||||||
| 4 | 0.155 | 0.37 | 0.621 | |||||||
| 5 | 0.173 | 0.4 | 0.666 | 1.4 | ||||||
| 6 | 0.191 | 0.43 | 0.71 | 1.48 | 2.66 | |||||
| 8 | 0.228 | 0.49 | 0.798 | 1.63 | 2.91 | |||||
| 10 | 0.267 | 0.55 | 0.876 | 1.79 | 3.16 | 5.14 | 10.9 | |||
| 12 | 0.304 | 0.61 | 0.954 | 1.94 | 3.41 | 5.49 | 11.5 | 21.2 | ||
| 14 | 0.341 | 0.67 | 1.03 | 2.1 | 3.66 | 5.84 | 12.2 | 22.2 | ||
| 16 | 0.378 | 0.73 | 1.11 | 2.25 | 3.91 | 6.19 | 12.8 | 23.2 | ||
| 20 | 0.85 | 1.27 | 2.56 | 4.41 | 6.89 | 14.2 | 25.2 | |||
| 25 | 1 | 1.47 | 2.94 | 5.03 | 7.77 | 15.8 | 27.7 | |||
| 30 | 1.18 | 1.71 | 3.44 | 5.7 | 8.64 | 17.5 | 30.2 | |||
| 35 | 3.94 | 6.5 | 9.52 | 19.1 | 32.7 | |||||
| 40 | 4.44 | 7.18 | 10.5 | 20.7 | 35.7 | |||||
| 45 | 7.93 | 11.4 | 22.3 | 37.7 | ||||||
| 50 | 8.7 | 12.3 | 23.9 | 41.2 | ||||||