ASME B18.3 TABLE 2A Standardmäßig Abmessungen für Hexagon and spline flat countersunk head cap screws, inch series
Diese Norm wurde aufgehoben
Senkschrauben mit Innensechskant. Der flache Senkkopf hat eine flache Oberseite und eine konische Auflagefläche mit einem eingeschlossenen Winkel von etwa 82 Grad.
Maßzeichnungen und technische Diagramme
Wichtigste Abmessungen und technische Parameter
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Dimensions in inches - ASME b18.3Table 2A - 2008- Socket Flat Countersunk Head Cap Screws |
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| d thread size | Nr. of threads x inch | d1 min | b basic thread length | dk max theo.Sharp | k max | t min | S nom | M nom | ||
| inches | mm | UNC | UNF | |||||||
| 0 (0.06) | 1.52 | - | 80 | 0.568 | 0.5 | 0.138 | 0.044 | 0.025 | 0.035 | 0.048 |
| 1 (0.073) | 1.85 | 64 | 72 | 0.07 | 0.62 | 0.168 | 0.054 | 0.031 | 0.05 | 0.06 |
| 2 (0.086) | 2.18 | 56 | 64 | 0.082 | 0.62 | 0.197 | 0.064 | 0.038 | 0.05 | 0.06 |
| 3 0.099) | 2.51 | 48 | 56 | 0.095 | 0.62 | 0.226 | 0.073 | 0.044 | 0.062 | 0.072 |
| 4 (0.112) | 2.84 | 40 | 48 | 0.108 | 0.75 | 0.255 | 0.083 | 0.055 | 0.062 | 0.072 |
| 5 (0.125) | 3.18 | 40 | 44 | 0.12 | 0.75 | 0.281 | 0.90 | 0.061 | 0.078 | 0.096 |
| 6 (0.138) | 3.51 | 32 | 40 | 0.133 | 0.75 | 0.307 | 0.097 | 0.066 | 0.078 | 0.096 |
| 8 (0.164) | 4.17 | 32 | 36 | 0.159 | 0.875 | 0.359 | 0.112 | 0.076 | 0.094 | 0.111 |
| 10 (0.19) | 4.83 | 24 | 32 | 0.184 | 0.875 | 0.411 | 0.127 | 0.087 | 0.125 | 0.145 |
| 1/4 | 6.35 | 20 | 28 | 0.244 | 1 | 0.531 | 0.161 | 0.111 | 0.156 | 0.183 |
| 5/16 | 7.94 | 18 | 24 | 0.305 | 1.125 | 0.656 | 0.198 | 0.135 | 0.188 | 0.216 |
| 3/8 | 9.53 | 16 | 24 | 0.368 | 1.25 | 0.781 | 0.234 | 0.159 | 0.219 | 0.251 |
| 7/16 | 11.11 | 14 | 20 | 0.429 | 1.375 | 0.844 | 0.234 | 0.159 | 0.25 | 0.291 |
| 1/2 | 12.70 | 13 | 20 | 0.492 | 1.5 | 0.938 | 0.251 | 0.172 | 0.312 | 0.372 |
| 5/8 | 15.88 | 11 | 18 | 0.616 | 1.75 | 1.188 | 0.324 | 0.220 | 0.375 | 0.454 |
| 3/4 | 19.05 | 10 | 16 | 0.741 | 2 | 1.438 | 0.396 | 0.220 | 0.5 | 0.454 |
| 7/8 | 22.23 | 9 | 14 | 0.865 | 2.25 | 1.688 | 0.468 | 0.248 | 0.562 | - |
| 1 | 25.40 | 8 | 12 | 0.989 | 2.5 | 1.938 | 0.540 | 0.297 | 0.625 | - |
| 1-1/8 | 28.58 | 7 | 12 | 1.108 | 2.81 | 2.188 | 0.611 | 0.325 | 0.75 | - |
| 1-1/4 | 31.75 | 7 | 12 | 1.233 | 3.12 | 2.438 | 0.683 | 0.358 | 0.875 | - |
| 1-3/8 | 34.93 | 6 | 12 | 1.357 | 3.44 | 2.688 | 0.755 | 0.402 | 0.875 | - |
| 1-1/2 | 38.10 | 6 | 12 | 1.482 | 3.75 | 2.938 | 0.827 | 0.435 | 1 | - |