BS 4174 16 Norma Dimensões para Tapping screws, slotted pan head
Parafusos de rosca, cabeça plana com fenda
Desenho dimensional e diagramas técnicos
Principais dimensões e parâmetros técnicos
|
Dimensions in mm - source BS 4174 Table 16 Slotted pan head self tapping screws |
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| Publication date: 09/1972 | ||||||||||
|
Ø
|
dk min
|
dk max |
k min
|
k max |
t nom
|
n min
|
n max | r | ||
|
ST 2.2
|
3.94 | 4.24 | 1.14 | 1.35 | 0.68 |
0.58
|
0.79 | 0.89 | ||
|
ST 2.9
|
5.21 | 5.56 | 1.47 | 1.73 | 0.89 |
0.79
|
0.99 | 1.07 | ||
|
ST 3.5
|
6.5 | 6.86 | 1.83 | 20.8 | 1.12 |
0.99
|
1.22 | 1.17 | ||
|
ST 4.2
|
7.77 | 8.18 | 2.16 | 2.44 | 1.32 |
1.14
|
1.37 | 1.32 | ||
|
ST 4.8
|
9.07 | 9.47 | 2.51 | 2.79 | 1.55 |
1.27
|
1.52 | 1.55 | ||
|
ST 5.5
|
10.34 | 10.8 | 2.84 | 3.18 | 1.75 |
1.42
|
1.7 | 1.98 | ||
|
ST 6.3
|
12.01 | 12.5 | 3.6 | 3.66 | 2.01 |
1.63
|
1.9 | 2.21 | ||
| ST 8 | 15.09 | 15.62 | 4.11 | 4.52 | 2.44 | 1.83 | 2.13 | 2.51 | ||