AS B199-1962
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Undercuts and runouts for screw threads
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
24-06-2021
English
01-01-1962
Important note : Users cannot be edited or removed once added to your Multi user PDF.INTRODUCTORY NOTESSPECIFICATION1 SCOPE2 FORM OF UNDERCUT3 LIMITS OF TOLERANCE ON DIAMETERS OF UNDERCUTS4 THREAD RUNOUTS ON EXTERNAL THREADS5 THREAD RUNOUTS ON INTERNAL THREADS: RECOMMENDED HOLE TAPPING PRACTICE6 DESIGNATION OF UNDERCUTS AND THREAD RUNOUTSAPPENDIX - FORMULAE FOR CALCULATING WIDTHS OF UNDERCUTS AND THREAD RUNOUTS
Provides data of dimensions and profiles of machined undercuts for external and internal threads of Unified, Whitworth, BA and Cycle thread forms. Dimensions and tolerances are given for standard cutting tools for this purpose and recommendations are made for widths of undercuts and runouts for various production requirements.
| Committee |
ME-029
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
Standards Australia
|
| Status |
Withdrawn
|
1. This British Standard relates to dimensions for profile and width of undercuts for external and internal threads of Unified, Whitworth, B.A. and Cycle thread forms and provides for a series of standard tools for producing the undercuts recommended. It makes recommendations concerning practice in regard to undercuts and relates also to allowances for thread runouts. It includes the following:-a. Nominal widths of machined undercuts and thread runouts (washout threads) produced from screwing tools.b. Recommendations for minimum widths of undercut or runout for various production requirements.c. Limits of tolerance on diameters of undercuts.d. Standard tools for undercuts.e. Formulae for calculating widths of undercuts and runouts.(See Appendix.)
| Standards | Relationship |
| BS 1936-1:1952 | Identical |
Reconfirmed 1987
| AS 3777-1990 | Shank hooks and large-eye hooks - Maximum 25 t |
| AS 2089-1993 | Sheave blocks for lifting purposes |
| AS 3751-2005 | Underground mining - Slope haulage - Couplings, drawbars, and safety chains |
| AS 3637.1-2005 | Underground mining - Winding suspension equipment General requirements (Reconfirmed 2017) |
| AS 1100.101-1992 | Technical drawing General principles (Reconfirmed 2014) |
| AS 2741-1992 | Shackles |
| AS 2741-2002 | Shackles (Reconfirmed 2014) |
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