BS 4174 17 Norma Dimensões para Tapping screws, cross recessed pan head
Parafusos de rosca, cabeça panela com rebaixamento cruzado
Desenho dimensional e diagramas técnicos
Principais dimensões e parâmetros técnicos
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Dimensions in mm - source BS 4174 Table 17 Cross recess pan head self tapping screws |
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| Publication date: 10 / 1972 | ||||||||||
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Ø thread size
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dk max
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dk min |
k max
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k min | recess nr. | t min | t max | r nom |
Type Z m ref.
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2.2
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4.24 | 3.94 | 1.35 | 1.14 | 1 | 1.22 | 1.62 | 3.35 | 2.44 | |
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2.9
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5.56 | 5.21 | 1.73 | 1.47 | 1 | 1.7 | 2.11 | 4.4 | 2.90 | |
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3.5
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6.86 | 6.5 | 2.08 | 1.83 | 2 | 1.88 | 2.34 | 5.26 | 3.91 | |
| 3.9 | 8.18 | 7.77 | 2.44 | 2.16 | 2 | 2.28 | 2.74 | 6.2 | 4.29 | |
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4.2
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9.47 | 9.07 | 2.79 | 2.51 | 2 | 2.69 | 3.15 | 7.21 | 4.70 | |
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4.8
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10.8 | 10.34 | 3.18 | 3.86 | 2 | 3.07 | 3.53 | 8.2 | 6.25 | |
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5.5
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12.5 | 12.01 | 3.66 | 3.3 | 3 | 3.58 | 4.04 | 9.47 | 6.73 | |
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6.3
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15.62 | 15.09 | 4.52 | 4.11 | 4 | 4.39 | 4.85 | 13.4 |
8.46 |
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