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BN 20039 3183920 hexalobular socket countersunk flat head screw M4x12

  1. Bossard Catalog
  3. 01 Fastening technology
  5. 01.100 Standard fastening elements
  7. 01.100.100 Screws
  9. 01.100.100.10 Screws and bolts with internal drive
  11. BN 3803, BN 2107, BN 20039 Hexalobular (6 Lobe) socket countersunk flat head screws, fully threaded
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Company
Bossard Catalog
Description
BN 20039 - Hexalobular (6 Lobe) socket countersunk flat head screws, fully threaded (ISO 14581), stainless steel A4
Bill of material
BN 20039 3183920 hexalobular socket countersunk flat head screw M4x12
BNARTNR
Identification
BNNORM1
ISO 14581
BNMAT
Material
Stainless steel A4
D
Nominal thread diameter
mm
D3
Core diameter
mm
P
Pitch
mm
L
Length
mm
B
Thread length
mm
DK
Head diameter max.
mm
K
Head height
mm
INNENSECHSRUN
NR
Hexalobular socket
A
Torx outer diameter
mm
T
Torx-depth max.
mm