ASME B18.9 TABLE 2 Norma Dimensões para Fast fixings in plastic and metal-plastic, screws grommets
Parafusos de cabeça de lavoura (redondos, escareados, chave invertida)
Desenho dimensional e diagramas técnicos
Principais dimensões e parâmetros técnicos
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Dimensions in inches (1 inch=25.4 mm) sourceASME B18.9 table 2 |
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| Publication date: 2007 | |||||||||
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d Thread size
|
E max | E min |
A max
|
A min
|
F max | S max |
S min
|
G min
|
G max |
| Regular head | |||||||||
|
5/16
|
0.312 | 0.299 | 0592 | 0.578 | 0.025 | 0.233 | 0.208 | 0.185 | 0.2 |
|
3/8
|
0.375 | 0.36 | 0.661 | 0.64 | 0.031 | 0.239 | 0.209 | 0.187 | 0.202 |
|
7/16
|
0.438 | 0.421 | 0.766 | 0.749 | 0.036 | 0.282 | 0.246 | 0.227 | 0.242 |
|
1/2
|
0.5 | 0.483 | 0.892 | 0.859 | 0.042 | 0.328 | 0.286 | 0.267 | 0.282 |
|
9/16
|
0.592 | 0.544 | 1.021 | 0.984 | 0.045 | 0.383 | 0.388 | 0.321 | 0.336 |
|
5/8
|
0.657 | 0.06 | 1.121 | 1.078 | 0.050 | 0.414 | 0.364 | 0.348 | 0.363 |
|
3/4
|
0.782 | 0.729 | 1.277 | 1.234 | 0.050 | 0.440 | 0.390 | 0.375 | 0.390 |
| Repair head | |||||||||
|
5/16
|
0.312 | 0.299 | 0.554 | 0.546 | 0.020 | 0.201 | 0.181 | 0.158 | 0.173 |
|
3/8
|
0.375 | 0.36 | 0.623 | 0.609 | 0.025 | 0.207 | 0.182 | 0.158 | 0.173 |
|
7/16
|
0.438 | 0.421 | 0.738 | 0.718 | 0.030 | 0.25 | 0.22 | 0.199 | 0.214 |
|
1/2
|
0.5 | 0.483 | 0.853 | 0.828 | 0.035 | 0.295 | 0.26 | 0.239 | 0.254 |
| 9/16 | 0.592 | 0.544 | 0.984 | 0.953 | 0.040 | 0.352 | 0.312 | 0.293 | 0.308 |
| 5/8 | 0.657 | 0.06 | 1.077 | 1.046 | 0.040 | 0.378 | 0.338 | 0.321 | 0.336 |
| 3/4 | 0.782 | 0.729 | 1.234 | 1.253 | 0.040 | 0.404 | 0.364 | 0.347 | 0.362 |