BS 7371-6:1998+A1:2011
Coatings on metal fasteners Specification for hot dipped galvanized coatings
| Označení normy: | BS 7371-6:1998+A1:2011 |
| Počet stran: | 10 |
| Vydáno: | 2011-02-28 |
| ISBN: | 978 0 580 71079 7 |
| Status: | Standard |
BS 7371-6:1998+A1:2011
This standard BS 7371-6:1998+A1:2011 Coatings on metal fasteners is classified in these ICS categories:
- 21.060.01 Fasteners in general
- 25.220.40 Metallic coatings
This Part of BS 7371 specifies requirements for hot dip galvanized coatings on metal fasteners and accessories applied by immersion in molten zinc.
NOTE 1 Hydrogen embrittlement is not induced as a result of this galvanizing process.
The coating consists of zinc and/or zinc/iron alloy layers which are metallurgically bonded to the base material, resulting in a dust free surface which when required can be lubricated to give controlled torque/clamping force properties (see BS 7371 : Part 2 : 1993).
NOTE 2 This Part of BS 7371 should be read in conjunction with the requirements for coatings of BS 7371 : Part 1 General requirements·and·selection·guidelines.
This Part of BS 7371 also specifies requirements for the following:
the minimum thickness requirements for two grades of coating;
modification of internal threads to accept standard size galvanized external threads;
assessment of corrosion resistance of unused coated parts.