Böllhoff 40178.8VZD520, Sechskantschrauben (Verpackung 500 Stk.)

Art.no.: 40178.8VZD520
ISO 4017 steel 8.8 zinc-plated, thick-film passivated (VZD) Cr(VI) - free metric thread
Note:
Similar to DIN 933 DIN-standard has been withdrawn changed spanner widths for M10, M12, M14 and M22
Surface (VZD):
galvanized, thick-film passivated, min. 5μm corrosion resistance to DIN EN ISO 9227*: white rust 72h, red rust 144h defined coefficient of friction μ(total) = 0.12 - 0.18 for elements with a nominal tensile strength ≥ 800 MPa
*The verification of the mentioned minimum requirements is carried out according to the test conditions of DIN EN ISO 4042, galvanic coatings for fasteners. For dimensions < M5, the above values may deviate downwards.
This standard specifies the characteristics of hexagon head bolts of product grade A and B:
Product grade A = For threads M1,6 to M24 and nominal lengths ≤ 10d or 150 mm, whichever is the shorter
Product grade B = For threads over M24 or nominal lengths > 10d or 150 mm, whichever is the shorter.
Information about the product class can be found in the technical details of the selected article.
Dimension: M5 x 20 mm

a max.: 2.4
a min.: 0.8
c max.: 0.5
c min.: 0.15
Diameter (d): M5
da max.: 5.7
dw min. A: 6.88
dw min. B: 6.74
e min. A: 8.79
e min. B: 8.63
ECLASS 7.1: 23110101
k: 3.5
k max. A: 3.65
k min. A: 3.35
Length (l): 20
l max. A: 20.42
l max. B: 215
l min. A: 19.58
l min. B: 18.95
Material: Steel 8.8
DIN/ISO: ISO 4017
Surface: zinc-plated, thick-film passivated (VZD)
Pitch (P): 0.8
Product grade: A
r min.: 0.2
s max.: 8
s min. A: 7.78
s min. B: 7.64
Packaging unit (pcs.): 500
Material version: 8.8
Cr(VI) Note: Cr(VI)-free
Flange/washer: without flange
Risk hydrogen embrittlement:
Thread type: Metric thread
Head shape: Hexagon head
Force application: Hexagon head