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Company
Bossard Catalog
Description
BN 6404 - Hexalobular (6 Lobe) socket button head screws, fully threaded (~ISO 7380-1), cl. 08.8 / 8.8, zinc plated blue
Bill of material
BN 6404 3057195 hexalobular socket button head screw M4x35
BNARTNR
Identification
BNNORM1
~ISO 7380-1
BNMAT
Material
Steel 08.8 / 8.8
BNSURFACE
Surface
zinc plated blue
D
Nominal thread diameter
mm
D3
Nominal core diameter
mm
P
Threaded pitch
mm
L
Nominal length
mm
A1
Distance from the last full form thread to the bearing face max.
mm
DA
Inner diameter of Auflageflaeche max.
mm
DK
Head diameter max.
mm
K
Head height max.
mm
R
Transition radius under head min.
mm
A
Width across flats
mm
T
Depth of the driving feature max.
mm
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