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Dimensions in inches (1 inch=25.4 mm) source BS 1083 Hexagon Nuts
Publication date: 1965
d Thread size	BSW (nr of threads x inch)	BSF (nr of threads x inch)	k min	k max	s min	s max	e
1/4'
5/16'
3/8'
7/16'
1/2'
9/16'
5/8'
3/4'
7/8'
1'
1-1/8'
1-1/4'
1-3/8'
1-1/2'
1-3/4'
2'


Dimensions in inches (1 inch=25.4 mm) source BS 1083 Hexagon Lock Nuts
Publication date: 1965
d Thread size	BSW (nr of threads x inch)	BSF (nr of threads x inch)	k min	k max	s min	s max	e
1/4'
5/16'
3/8'
7/16'
1/2'
9/16'
5/8'
3/4'
7/8'
1'
1-1/8'
1-1/4'
1-3/8'
1-1/2'
1-3/4'
2'


Dimensions in inches (1 inch=25.4 mm) source BS 1083 Hexagon Slotted Nuts
Publication date: 1965
d Thread size	BSW (nr of threads x inch)	BSF (nr of threads x inch)	k min	k max	s min	s max	e	n	h
1/4'
5/16'
3/8'
16'
1/2'
9/16'
5/8'
3/4'
7/8'
1'
1-1/8'
1-1/4'
1-3/8'
1-1/2'
1-3/4'
2'


Dimensions in inches (1 inch=25.4 mm) source BS 1083 Hexagon Slotted and Castle Nuts
Publication date: 1965
d Thread size	BSW (nr of threads x inch)	BSF (nr of threads x inch)	k min	k max	s min	s max	e	n	h
1/4'
5/16'
3/8'
7/16'
1/2'
9/16'
5/8'
3/4'
7/8'
1'
1-1/8'
1-1/4'
1-3/8'
1-1/2'
1-3/4'
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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Standard BS 1083