PD 6507:1982
Current
The latest, up-to-date edition.
Guidance on metric screw threads and fasteners for use by model engineers
Hardcopy , PDF
English
30-09-1982
Important note : Users cannot be edited or removed once added to your Multi user PDF.
Foreword
Guide
1 Scope
2 Metric screw threads
2.1 Fastener screw threads
2.2 Attachment threads
2.3 Mismatching of screw threads
3 Metric fasteners
3.1 Hexagon bolts and screws
3.2 Bolts and screws with heads other than hexagon
3.3 Lengths of bolts and screws
3.4 Hexagon nuts
4 Metric hexagon sizes for use with attachment
threads
5 Designation of metric model engineer screw threads,
fasteners and attachments
5.1 Fastener screw threads
5.2 Attachment screw threads
5.3 Hexagon bolts, screws and nuts
5.4 Bolts and screws with heads other than hexagon
5.5 Attachment hexagons
Tables
1 Metric fastener threads
2 Dimensions of hexagon heads for bolts and screws
3 Dimensions of hexagon nuts
4 Available lengths of metric bolts and screws
5 Metric attachment threads
6 Dimensions of hexagons for union nuts and similar
applications of metric attachments
7 Scale metric model engineering threads equivalent
to full-size imperial threads
Establishes a range of metric screw threads and fasteners and a range of metric attachment threads for fittings and mountings suitable for application in model engineering which, whilst of scale appearance, ensure adequate strength of threaded fasteners and attachments.
| Committee |
FME/9
|
| DevelopmentNote |
Reviewed and confirmed by BSI, October 2012. (09/2012)
|
| DocumentType |
Standard
|
| Pages |
8
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This Published Document establishes a range of metric screw threads for fasteners of thread diameter 0.8 mm to 5.0 mm inclusive and a range of metric attachment threads for fittings and mountings of thread diameter 3.0 mm to 20.0 mm inclusive that are suitable for model engineering application. Dimensions of metric fasteners are also given.
In order to enable fine scale to be reproduced where imperial sizes of hexagon fasteners were used in the prototype, sizes of hexagon heads of fasteners and hexagon nuts have been carefully chosen; the scaling of metric sizes presents no difficulty, as metric hexagons can be chosen from standard ranges.
The scale metric model engineering threads equivalent to full-size imperial threads are given in table 7.
The dimensions given in this document are those at the maximum metal condition.
NOTE. The titles of the publications referred to in this Published Document are listed on the inside back cover.
| BS 3692:1967 | Specification for ISO metric precision hexagon bolts, screws and nuts. Metric units |
| PD 6494:1980 | Mismatch of screw thread systems |
| BS 4183:1967 | Specification for machine screws and machine screw nuts. Metric series |
| BS 4827:1972 | Specification for ISO miniature screw threads. Metric series |
| BS 3643-1:1963 | ISO metric screw threads. Thread data and standard thread series |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.