BS 2470 4 De forme standard Dimensions pour Hexagon socket button head screws without flange or with flange
Vis à tête bombée à six pans creux avec filetage ISO en pouces (unifié)
Dessins cotés et schémas techniques
Dimensions et paramètres techniques clés
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Dimensions in inches - source BS 2470 Table 4 Hexagon socket button head screws with ISO inch (Unified) threads Publication date: 07/1973 |
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| d basic thread size | Nr of threads x inch | dk max | dk min |
k max |
k min | b | t min | s | ||
| inches | mm | UNC | ||||||||
| 0 (0.06) | 1.52 | - | 0.114 | 0.104 | 0.032 | 0.026 | 0.5 | 0.020 | 0.035 | |
| 1 (0.073) | 1.85 | 64 | 0.139 | 0.129 | 0.039 | 0.033 | 0.5 | 0.028 | 0.05 | |
| 2 (0.086) | 2.18 | 56 | 0.164 | 0.154 | 0.046 | 0.046 | 0.5 | 0.028 | 0.05 | |
| 3 (0.099) | 2.51 | 48 | 0.188 | 0.176 | 0.052 | 0.052 | 0.5 | 0.035 | 0.062 | |
| 4 (0.1129 | 2.84 | 40 | 0.213 | 0.201 | 0.059 | 0.059 | 0.5 | 0.035 | 0.062 | |
| 5 (0.125) | 3.18 | 40 | 0.238 | 0.226 | 0.066 | 0.066 | 0.5 | 0.044 | 0.078 | |
| 6 (0.138) | 3.51 | 32 | 0.262 | 0.250 | 0.073 | 0.073 | 0.63 | 0.044 | 0.078 | |
| 8 (0.164) | 4.17 | 32 | 0.312 | 0.298 | 0.087 | 0.087 | 0.750 | 0.052 | 0.094 | |
| 10 (0.19) | 4.83 | 24 | 0.361 | 0.347 | 0.101 | 0.101 | 1 | 0.070 | 0.125 | |
| 1/4 | 6.35 | 20 | 0.437 | 0.419 | 0.132 | 0.132 | 1 | 0.087 | 0.156 | |
| 5/16 | 7.94 | 18 | 0.547 | 0.527 | 0.166 | 0.166 | 1 | 0.105 | 0.188 | |
| 3/8 | 9.53 | 16 | 0.656 | 0.636 | 0.199 | 0.199 | 1.25 | 0.122 | 0.219 | |
| 1/2 | 12.70 | 13 | 0.875 | 0.851 | 0.265 | 0.265 | 2 | 0.175 | 0.312 | |
| 5/8 | 15.88 | 11 | 1 | 0.970 | 0.331 | 0.331 | 2 | 0.210 | 0.375 | |