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similar to ISO 4014 | DIN standard has been withdrawn
DIN 931 | steel | 8.8 | hot-dip galvanised (thermally galvanised) | Cr(VI) - free | metric thread | screws can be paired with a 6h tolerance-compliant female thread
Note: Similar to ISO 4014 | DIN-standard has been withdrawn | changed spanner widths for M10, M12, M14 and M22
Hot-dip galvanised screws have very good resistance against corrosion. The zinc layer is much thicker than with galvanic coatings
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.
Note: Similar to ISO 4014 | DIN-standard has been withdrawn | changed spanner widths for M10, M12, M14 and M22
Hot-dip galvanised screws have very good resistance against corrosion. The zinc layer is much thicker than with galvanic coatings
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.
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
Material:
Steel 8.8
Installation method:
Screw into place with tool
Surface:
hot-dip galvanised
Product type:
Cap screw with external driving feature
Product group:
Screws
RoHS conformal:
Material:
Steel
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The Manual of fastening Technology: 8th edition
Böllhoff bulletin: Changeover to Cr6+-free protective zinc layers for fasteners
Fastening and assembly technology: Products and services
