PD 6494:1980
Current
The latest, up-to-date edition.
Mismatch of screw thread systems
Hardcopy , PDF
English
30-06-1980
Important note : All end users must be registered with an Account prior to user licenses being assigned.Draws attention to the possibility of mismatch with the different screw thread forms available and makes recommendations to avoid this possibility.
| Committee |
FME/9
|
| DevelopmentNote |
Reviewed and confirmed by BSI, October 2012. (09/2012)
|
| DocumentType |
Standard
|
| Pages |
8
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
The purpose of this publication is to draw attention to the danger which can arise from the mismatch of the different thread forms and sizes in use at the present time. The responsible BSI technical committees, MEE/1, Screw threads, and MEE/60, Bolts, nuts and accessories, have considered this problem and have agreed that it should be publicized. They have also agreed to the issue of amendment slips to BS 1580 and BS 3643, drawing attention to the possibility of mismatch.
| Standards | Relationship |
| UNE-EN 17636:2024 | Identical |
| DEFSTAN 02-862(PT1)/2(2007) : 2007 | FASTENERS - PART 1: GENERAL |
| DEFSTAN 02-862(PT1)/1(2000) : 2000 | FASTENERS - PART 1: GENERAL |
| BS 93:2008 | British Association (B.A.) screw threads. Requirements |
| BS 4278:1984 | Specification for eyebolts for lifting purposes |
| BS 3643-2:2007 | ISO metric screw threads Specification for selected limits of size |
| BS 3643-2:1981 | ISO metric screw threads Specification for selected limits of size |
| 08/30173466 DC : DRAFT APR 2008 | |
| BS 8498:2008 | British Standards for screw threads and screw gauges. Introduction and guidance |
| BS 3643-1:2007 | ISO metric screw threads Principles and basic data |
| BS 3643-1:1981 | ISO metric screw threads Principles and basic data |
| PD 6507:1982 | Guidance on metric screw threads and fasteners for use by model engineers |
| DEFSTAN 02-862(PT1)/3(2011) : 2011 | NAVAL FASTENERS - PART 1: MATERIAL SELECTION AND USE |
| BS 1580:1949 | Unified screw threads (with metric equivalents) |
| BS 3643(1963) : LATEST | |
| BS 4278:1968 | Specification for eyebolts for lifting purposes |
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