BS 84:1956

$198.66

Specification for parallel screw threads of Whitworth form

Published By	Publication Date	Number of Pages
BSI	1956	54

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Categories: 21.040.20 - Inch screw threads, BSI

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Description

Form of thread defined. Tables: basic sizes, limits, tolerances for ‘class’ bolts, nuts; BS Whitworth range, ⅛ in to 6 in; BS Fine range, $9C in to 4$9C in (limits and tolerances up to 3 in only). Also a Selected Thread series more suitable than BS Pipe parallel series for extra fine pitch applications. Appendices: limits, tolerances for B.S.W. and B.S.F. truncated bolts and nuts; bases of tolerances and allowances, formulae; effects of pitch and angle errors, acceptability of error combination; form of Whitworth crests; limits and tolerances for (non-preferred) ‘close class’ nuts.

Additional information

Status	Withdrawn
Pages	54
Publication Date	1956-09-26
Withdrawn Date	2007-11-30
Replaced By	BS 84:2007
ISBN	0 580 32662 4
Standard Number	BS 84:1956
Title	Specification for parallel screw threads of Whitworth form
Descriptors	Whitworth screw threads, Medium threads, Dimensions, Free threads, Close-fit threads, Thread forms, Bolts, Metal coatings, Parallel threads, Nuts, Thread pitch, Normal threads, Fits, Dimensional tolerances, Diameter, Designations, Threads
Publisher	BSI
Committee	FME/9
ICS Codes	21.040.20 - Inch screw threads

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BS 84:1956

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