BS 4174 12 De forme standard Dimensions pour Tapping screws, slotted raised head
Vis autotaraudeuses à tête bombée fendue
Dessins cotés et schémas techniques
Dimensions et paramètres techniques clés
|
Dimensions in mm - source BS 4174 Table 12 80° slotted raised countersunk head tapping screws: Publication date: 10 - 1972 |
||||||||
|
Ø thread size
|
dk min
|
dk mx |
k max
|
t nom
|
n min
|
n max | f nom | |
|
ST 2.2
|
3.73 | 4.37 | 1.3 | 1.04 | 0.58 | 0.79 | 0.64 | |
|
ST 2.9
|
4.95 | 5.71 | 1.7 | 1.37 | 0.79 | 0.99 | 0.84 | |
|
ST 3.5
|
6.2 | 7.09 | 2.11 | 1.7 | 0.99 | 1.22 | 1.02 | |
|
ST 4.2
|
7.42 | 8.43 | 2.54 | 2.03 | 1.14 | 1.37 | 1.22 | |
|
ST 4.8
|
8.64 | 9.78 | 2.95 | 2.39 | 1.27 | 1.52 | 1.4 | |
|
ST 5.5
|
9.88 | 11.13 | 3.35 | 2.72 | 1.402 | 1.7 | 1.6 | |
|
ST 6.3
|
11.48 | 12.88 | 3.89 | 3.15 | 1.63 | 1.9 | 1.83 | |
| ST 8 | 14.43 | 16.13 | 4.85 | 3.96 | 1.83 | 2.13 | 2.29 | |