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DIN 931  similar to ISO 4014

Hexagon head bolts
Material: Steel 8.8 | Surface: zinc-plated

For further information please contact us.
Item no.: 9318.8VZ1040


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similar to ISO 4014 | DIN standard has been withdrawn
Item no.: 9318.8VZ1040
DIN 931 | steel | 8.8 | zinc-plated | Cr(VI)-free | metric thread | screws can be paired with a 6h tolerance-compliant female thread

Note: similar to ISO 4014 | DIN-standards has been withdrawn

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: M10x40 mm

technical details

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b l longer than 200 45
b l up to 125 26
b l up to 200 32
c max. 0,6
c min. 0,15
Cr(VI) Note Cr(VI)-free
da max. 11,2
Diameter (d) M 10
ds max. 10
dw min. A 14,63
dw min. B 14,47
e min. A 17,77
e min. B 17,59
Flange/washer without flange
Force application Hexagon head
Head shape Hexagon head
Installation method Screw into place with tool
k max. A 6,58
k max. b 6,69
k min. A 6,22
k min. b 6,11
l max. A 40,5
l max. B 41,25
l min. A 39,5
Length (l) 40
Material Steel
Material version 8.8
Pitch (P) 1,5
Product grade A
r min. 0,4
Risk hydrogen embrittlement
RoHs conformal
s max. 16
s min. A 15,73
s min. B 15,57
Surface zinc-plated
Thread type Metric thread
Tool size SW 16


You can download CAD-files from our catalog on partcommunity: To Böllhoff partcommunity
Title Language Version File Download
Data sheet: Technical information and dimensions of the product English 04/2021 142.68 KB / PDF
Böllhoff bulletin: Changeover to Cr6+-free protective zinc layers for fasteners English 1622/15.02 894.98 KB / PDF
Fastening and assembly technology: Products and services English 1180/21-V1-EN 8.79 MB / PDF

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