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BS 3777:1964

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Specification for screw thread measuring cylinders
Available format(s)

Hardcopy , PDF

Superseded date

31-05-1978

Language(s)

English

Published date

17-08-1964

Grade A (pitch-line) and Grade B (grouped) measuring cylinders for checking external screw threads of Unified and ISO inch, Whitworth, B.A. and ISO metric form by means of pitch diameter measuring machines. Bases for the diametral tolerances. Relative merits of grades A and B. Measuring ranges, material and finish, form and general dimensions, accuracy and identification; tables of nominal diameters and associated P values for Grade A cylinders; limits of size for Grade B cylinders.

This British Standard relates to two grades of screw thread measuring cylinders intended for use in checking external screw threads by means of pitch diameter measuring machines.

NOTE For a full description of this well established method of measuring the effective diameter of an external screw thread when using thread measuring cylinders, and also for an explanation of the P value used in this measurement, see “Notes on Applied Science No.1?? issued by the Department of Scientific and Industrial Research and entitled “Gauging and Measuring Screw Threads??, published by Her Majesty’s Stationery Office.

The standard comprises two parts:

Part 1 gives the bases for the diametral tolerances of Grade A and Grade B screw thread measuring cylinders and the relative merits of the two grades.

Part 2 gives the complete specification for both grades of cylinders suitable for the forms and pitches of screw threads shown in Table 1.

Committee
TPR/1
DevelopmentNote
Superseded by BS 5590(1978), but remains current. (07/2005) Inactive for the new design. (12/2007)
DocumentType
Standard
Pages
16
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

Standards Relationship
AS B233-1966 Identical

BS 3643(1963) : LATEST
BS 93:1951 Specification for British Association (B.A.) screw threads with tolerances for sizes 0 B.A. to 16 B.A.
BS 427-1:1961 Method for Vickers hardness test Testing of metals
BS 84:1956 Specification for parallel screw threads of Whitworth form

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£134.00
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