ASME B18.5 TABLE 9 De forme standard Dimensions pour Round head bolts, inch series
Boulons d'ascenseur à tête fraisée plate
Dessins cotés et schémas techniques
Dimensions et paramètres techniques clés
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Dimensions in inches - source ASME B18.5 Table 9 Publication date: 2008 |
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| Nominal size or basic bolt Diameter | E | A | H | Q | P | R | C | ||||||||||||||
| Max | Min | Max | Min | Max | Min | Max | Max | Min |
Min |
Ref | |||||||||||
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No.10 ( 0.1900) |
0.199 | 0.182 | 0.790 | 0.750 | 0.082 | 0.062 | 0.031 | 0.125 | 0.094 | 0.031 | 9 | ||||||||||
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1/4 (0.2500) |
0.260 | 0.237 | 1.008 | 0.969 | 0.098 | 0.078 | 0.031 | 0.156 | 0.188 | 0.031 | 9 | ||||||||||
| 5/16 (0.3125) | 0.324 | 0.298 | 1.227 | 1.188 | 0.114 | 0.061 | 0.031 | 0.219 | 0.219 | 0.031 | 9 | ||||||||||
| 3/8 (0.3750) | 0.388 | 0.360 | 1.352 | 1.312 | 0.145 | 0.125 | 0.047 | 0.250 | 0.219 | 0.031 | 11 | ||||||||||
| 7/16 (0.4375) | 0.452 | 0.421 | 1.477 | 1.438 | 0.176 | 0.156 | 0.047 | 0.281 | 0.250 | 0.031 | 13 | ||||||||||
| 1/2 (0.5000) | 0.515 | 0.483 | 1.602 | 1.562 | 0.176 | 0.156 | 0.047 | 0.281 | 0.250 | 0.031 | 12 | ||||||||||