BS 4174 13 Standard Wymiary dla Tapping screws, cross recessed oval head
Wkrety z lbem stozkowym i wglebieniem krzyzowym 80°
Rysunek wymiarowy i diagramy techniczne
Kluczowe wymiary i parametry techniczne
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Dimensions in mm - source BS 4174 Table 13 Cross Recess 80° Raised Countersunk Head Tapping Screws Publication date: 10 - 1972 |
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Ø thread size
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dk min
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dk mx |
k max
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t min
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t max | f nom | reccess nr. | m nom |
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ST 2.2
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3.73 | 4.37 | 1.3 | 1.22 | 1.62 | 0.64 | 1 | 2.41 |
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ST 2.9
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4.95 | 5.71 | 1.7 | 1.93 | 2.34 | 0.84 | 1 | 3.12 |
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ST 3.5
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6.2 | 7.09 | 2.11 | 2.29 | 2.74 | 1.02 | 2 | 4.29 |
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ST 4.2
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7.42 | 8.43 | 2.54 | 2.67 | 3.12 | 1.22 | 2 | 4.65 |
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ST 4.8
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8.64 | 9.78 | 2.95 | 3.1 | 3.56 | 1.4 | 2 | 5.08 |
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ST 5.5
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9.88 | 11.13 | 3.35 | 3.48 | 3.94 | 1.6 | 3 | 6.63 |
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ST 6.3
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11.48 | 12.88 | 3.89 | 4.03 | 4.47 | 1.83 | 3 | 7.11 |
| ST 8 | 14.43 | 16.13 | 4.85 | 5.41 | 5.87 | 2.29 | 4 | 9.47 |