Raised countersunk head tapping screws CR H DIN 7983C-stainless A2

Catalog no.: 386
165 variants
  • Material: Stainless steel

    Stainless steel refers to alloyed or unalloyed steels that contain at least 10.5% chromium and less than 1.2% carbon. Colloquially, stainless steel is also referred to as stainless steel (NiRo), although not all stainless steel is the same as "stainless".

  • Surface: blank

    The term plain indicates a completely untreated, merely oiled, smooth surface for all DIN and ISO screws such as wood screws, hexagon head screws, threaded rods, nuts and many types of washers.

  • Thread type: Sheet metal thread
  • Head shape: Lens countersunk head
  • Norm DIN: 7983C (standard withdrawn)
  • Norm ISO: ~7051C
  • Grade: A2 (austenitic stainless steel)

    Stainless steels are defined in DIN EN 10088-1 as iron alloys containing at least 10.5 per cent chromium and no more than 1.2 per cent carbon. The multi-part DIN EN ISO 3506 series of standards applies to mechanical fasteners made from stainless steels. Grade A2 is classified as non-acid-resistant. Austenitic stainless steels cannot be heat-treated and achieve their different strength classes through cold working to varying degrees.

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