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immediate downloadReleased: 2012-12-31
BS SP 139 and SP 140:1969+A2:2012
Specification for Corrosion-resisting steel crinkle washers
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| Standard number: | BS SP 139 and SP 140:1969+A2:2012 |
| Pages: | 8 |
| Released: | 2012-12-31 |
| ISBN: | 978 0 580 79632 6 |
| Status: | Standard |
DESCRIPTION
BS SP 139 and SP 140:1969+A2:2012
This standard BS SP 139 and SP 140:1969+A2:2012 Specification for Corrosion-resisting steel crinkle washers is classified in these ICS categories:
- 49.030.50 Washers and other locking elements
This standard specifies dimensions, tolerances and general requirements for a series of corrosion-resisting steel crinkle washers suitable for use with screwed fasteners ranging from 0.060 in (Unified No. 0) to 0.750 in nominal diameter. It provides for natural finish, BS SP 139 and cadmium coating BS SP 140.
NOTE The values stated in imperial units are to be regarded as the standard and the metric equivalents are approximate. More accurate conversions should be based upon the data in BS 350 “Conversion factors and tables”.