BS 328-5:1983
Current
The latest, up-to-date edition.
Drills and reamers Specification for the dimensions of countersinks and counterbores
Hardcopy , PDF
English
29-07-1983
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Foreword
Committees responsible
Specification
1. Scope
2. Definitions
3. Counterbores with parallel shanks and integral
pilots
4. Counterbores with Morse taper shanks and
detachable pilots
5. Countersinks with parallel shanks
6. Countersinks with Morse taper shanks
Appendices
A. Related tolerances extracted from BS4500: Part 1
B. Counterbores with cutting diameters dimensioned
in inches
Tables
1. Counterbores with parallel shanks and integral
pilots. General dimensions
2. Counterbores with parallel shanks and integral
pilots. Diameters
3. Counterbores with Morse taper shanks and detachable
pilots. General dimensions
4. Counterbores with Morse taper shanks and detachable
pilots. Diameters
5. Detachable pilots. Dimensions
6. Countersinks with parallel shanks. Dimensions
7. Countersinks with Morse taper shanks. Dimensions
8. Limits of tolerance e8
9. Limits of tolerance f7
10. Limits of tolerance h9
11. Limits of tolerance z9
12. Limits of tolerance H8
13. Counterbores with parallel shanks and integral
pilots (inch series). Diameters
14. Counterbores with Morse taper shanks and
detachable pilots (inch series). Diameters
Figures
1. Counterbore with parallel shank and integral pilot
2. Counterbore with Morse taper shank and detachable
pilot
3. Detachable pilot
4. Countersink with parallel shank
5. Countersink with Morse taper shank
6. Counterbore with parallel shank and integral pilot
7. Counterbore with Morse taper shank and detachable
pilot
Specifies the dimensions of counterbores with parallel shanks and integral pilots; counterbores with Morse taper shanks and detachable pilots; countersinks with parallel shanks, and countersinks with Morse taper shanks. Appendix A shows extracts from BS 4500:Part 1 giving details of the tolerances specified and Appendix B gives details of counterbores with cutting diameters designated in inches.
| Committee |
W/-
|
| DevelopmentNote |
Supersedes BS 122-2(1964) & 78/75479 DC. (04/2003) Supersedes BS 328(1950) (07/2004) Reviewed and confirmed by BSI, December 2009. (11/2009)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This Part of this British Standard specifies the dimensions of the following:
- counterbores with Morse taper shanks and detachable pilots;
- countersinks with parallel shanks;
- countersinks with Morse taper shanks.
Appendix A shows extracts from BS 4500-1, giving details of the tolerances specified. Appendix B specifies details of counterbores with cutting diameters designated in inches.
NOTE The titles of the publications referred to in this standard are listed on the inside back cover.
| Standards | Relationship |
| ISO 4208:1977 | Identical |
| ISO 4207:2016 | Identical |
| ISO 3293:2016 | Identical |
| ISO 3294:2016 | Identical |
| ISO 4206:2016 | Identical |
| UNE-EN ISO 19146:2019 | Identical |
| UNE-EN ISO 1680:2014 | Identical |
| BS 7842:1996 | Bolts, screws and studs with pre-applied thread sealing feature incorporated into the thread |
| BS 4185-13:1985 | Machine tool components Specification for dimensions of counterbored holes |
| BS 4500-1:1969 | ISO limits and fits General, tolerances and deviations |
| BS 328-3:1983 | Drills and reamers Specification for the dimensions of core drills |
| BS 328-4:1983 | Drills and reamers Specification for dimensions of reamers |
| BS 1660:1972 | Specification for machine tapers, reduction sleeves and extension sockets |
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