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BS 4933 7 Standard Dimensions for Cup head square neck bolts

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This norm has been cancelled

Carriage bolts square neck

Dimensional Drawing and Technical Diagrams

188_0ZN2Ex_bs-4933.jpg

Key Dimensions and Technical Parameters

Dimensions in mm - source BS 4933 Table 7 Withdrawn
Publication date: 3 - 1973
d thread size Pitch dk min dk max k min k max f min f max v min v max
M 5 0.8 10.2 11.3 2.5 3.1 2.5 3.1 4.52 5.48
M 6 1 12.4 13.5 3 3.6 3 3.6 5.52 6.48
M 8 1.25 16.9 18 4 4.8 4 4.75 7.42 8.58
M 10 1.5 21.2 22.5 5 5.8 5 5.75 9.42 10.58
M 12 1.75 25.7 27 6 6.8 6 6.75 11.3 12.7
M 16 2 34.4 36 8 8.9 8 8.9 15.3 16.7
M 20 2.5 43.4 45 10 10.9 10 10.9 19.16 20.84
M 24 3 52.1 54 12 13 12 13.1 23.16 24.84

Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH, Burggrafenstraße 6, 10787 Berlin, Germany.
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