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BS 4395 1 Standard Dimensions for High Strength friction grip Washer

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Dimensional Drawing and Technical Diagrams

1947_4176.jpg

Key Dimensions and Technical Parameters

Dimensions in mm: source BS 4395 part 1
Publication Date: 1969

Thread Diameter
inside diameter d max
 inside diameter d min
outiside diameter dc max
 outside diameter dc min Thickness h max Thickness h min
M12 13.8 13.4 30 29 2.8 2.4
M16 17.8 17.4 37 36 3.4 3
M20 21.5 21.1 44 43 4.2 3.3
M22 23.4 23 50 48.5 4.2 3.8
M24 26.4 26 56 54.5 4.2 3.8
M27 29.4 29 60 58.5 4.2 3.8
M30 32.8 32.4 66 64.5 4.2 3.8
M36 38.8 38.4 85 83.5 4.6 4.2

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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