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Hexalobular socket button head screw ISO ≈7380-1 Stainless steel A2 M4X40


Article number
Diameter
Length
Driving features Hexalobular
Head shape Button head
Material Stainless steel
Material technical A2
Thread direction Right
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Specifications

Diameter M4
Length 40 mm
Driving features Hexalobular
Head shape Button head
Material Stainless steel
Material technical A2
Thread direction Right
Thread Metric thread
Info
  • Due to the unfavourable head geometry these fasteners have reduced loadability.
  • Steel fasteners with reduced loadability are marked with a '0' preceding the property class mark, e.g. '010.9'.
  • Stainless steel fasteners with reduced loadability are either marked with a '0' preceding the property class mark, e.g. 'A2-070', or with the steel grade only, e.g. 'A2'.

Dimensions

d-D M4
dk (max.) 7.6
k (max.) 2.2
L (mm) 40
P 0.7
Socket 20

Standards

ISO ≈7380-1
NF ≈E25-126
BS ≈4168-6
ASME ≈B18.3.4M

Article numbers

Article number 51029.040.040
EAN 8715494552356
UBB 500635831372
UNSPSC 31161518

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