This document specifies the properties of a screw, hexagon head, flanged, with six-lobe recess made of composite for aerospace cabin and non-structural applications. Due to the polymer material the screws can also be used to avoid damage to varnish and coatings beneath the washer while tightening the screw.
PROJEKAT
naSRPS EN 4909:2023
40.20
Nacrt na javnoj raspravi 60 dana
19. 3. 2026.
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