CAD model selection
Selectable products: 56
Company
Bossard Catalog
Description
BN 20240 - Hex socket head cap screws partially threaded (DIN 912, ISO 4762), cl. 8.8, zinc plated with thicklayer passivation
Bill of material
BN 20240 3370941 hex socket head cap screw M8x40
BNARTNR
Identification
3370941
BNNORM1
DIN 912
BNNORM2
ISO 4762
BNMAT
Material
Steel 8.8
BNSURFACE
Surface
zinc plated with thicklayer passivation
D
Nominal thread diameter
8.0
mm
D3
Thread core diameter
6.466
mm
P
Thread pitch
1.250
mm
L
Nominal length
40.0
mm
B
Thread length
28.000
mm
LS
Shank length min.
5.750
mm
LG
Distance from the last full form thread to the bearing face (shank length of bolt) max.
12.000
mm
DK
Head diameter max.
13.000
mm
DA
Inner diameter of bearing surface max.
9.200
mm
DS
Diameter of the unthreaded shank max.
8.000
mm
E
Reduction in diameter at the Hex min.
6.860
mm
F
Distance max.
1.020
mm
K
Head height max.
8.000
mm
R
Transition radius under head min.
0.400
mm
S
Width across flats
6.000
mm
T
Depth of the driving feature min.
4.000
mm
V
Chamfer max.
0.800
mm
DW
Diameter of the bearing face min.
12.330
mm
W
Residual head height min.
3.000
mm
Preview - Generation
Preview
3D
Dimension
2D