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immediate downloadReleased: 2015-10-31
BS A 401-420:2015
Specification for screws, pan and 100° countersunk head, hexalobular drive recess (unified threads below ¼ inch) in various materials
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| Standard number: | BS A 401-420:2015 |
| Pages: | 36 |
| Released: | 2015-10-31 |
| ISBN: | 978 0 580 82769 3 |
| Status: | Standard |
DESCRIPTION
BS A 401-420:2015
This standard BS A 401-420:2015 Specification for screws, pan and 100° countersunk head, hexalobular drive recess (unified threads below ¼ inch) in various materials is classified in these ICS categories:
- 49.030.20 Bolts, screws, studs
This British Standard specifies the dimensions, materials, protective finishes and part numbers for 100° countersunk head and pan head screws with unified threads for non-structural general aerospace use.