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Company
Bossard Catalog
Description
BN 30905 - Pozi pan head tapping screws with collar, form Z and flat end type F (BS 4174), zinc plated blue
Bill of material
BN 30905 5001536 cross recessed pan head tapping screw with collar ST3.5x13-F-Z
BNARTNR
Identification
BNNORM1
BS 4174
BNMAT
Material
Steel case-hardened 450 HV
BNSURFACE
Surface
zinc plated blue
D
Nominal thread diameter
mm
D3
Nominal core diameter
mm
P
Pitch of bolt
mm
L
Nominal length
mm
DK
Head diameter max.
mm
K
Head height max.
mm
A
Distance from head bottom side to last full convolution max.
mm
C
Max. collar height
mm
R
Radius min.
mm
RF
Head-Radius ~
mm
MZ
Wing diameter of cross recesses
mm
Y
Help dimensions
mm
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Dimension
2D
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