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BSI 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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BSI BS A 401-420:2015

Specification for screws, pan and 100° countersunk head, hexalobular drive recess (unified threads below ¼ inch) in various materials

PUBLISH DATE 2015
PAGES 36
BSI BS A 401-420:2015

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.

SDO BSI: British Standards Institution
Document Number A 401-420
Publication Date Oct. 31, 2015
Language en - English
Page Count
Revision Level
Supercedes
Committee ACE/12
Publish Date Document Id Type View
Oct. 31, 2015 BS A 401-420:2015 Revision