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Kraftiga planbrickor DIN 7349 i rostfritt A2-stål för skruvförband med höga klämkrafter och belastningar.
Kraftiga planbrickor DIN 7349 i rostfritt A2-stål för skruvförband med höga klämkrafter och belastningar.
Teknisk måttritning och dimensionstabell för kraftig planbricka DIN 7349 i syrafast A4 rostfritt stål.
Kraftiga planbrickor DIN 7349 i rostfritt A2-stål för skruvförband med höga klämkrafter och belastningar.
Kraftiga planbrickor DIN 7349 i rostfritt A2-stål för skruvförband med höga klämkrafter och belastningar.
Teknisk måttritning och dimensionstabell för kraftig planbricka DIN 7349 i syrafast A4 rostfritt stål.

Heavy-duty washer | A2 | DIN 7349

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Description

A2 heavy-duty washer is designed for use in bolted joints with heavy-duty clamping sleeves. The product meets the DIN 7349 standard and is used where an extra thick and stable washer is required to distribute high clamping forces without deformation. It is suitable for professional installations where long service life and consistent performance are crucial.

AREA OF APPLICATION

The product is used in fixture construction, machine building, and other applications involving high and concentrated clamping forces. It is intended for bolted joints with clamping sleeves where a thicker washer than standard washers (e.g., DIN 125) is required, and where the A2 material grade provides good protection against corrosion and mechanical stress in normal indoor and outdoor use.

TECHNICAL SPECIFICATIONS

  • Product type: Washer
  • Product family: Heavy-duty washers
  • Material grade: A2
  • Standard: DIN 7349
  • Environment: Outdoor / Indoor
  • Delivery unit: Piece

FREQUENTLY ASKED QUESTIONS (FAQ)

What distinguishes a heavy-duty washer (DIN 7349) from a standard washer (DIN 125)?

DIN 7349 is significantly thicker than a standard washer of the same size (e.g., approximately 4 mm for M8 compared to approximately 1.6 mm for DIN 125) and has a smaller outer diameter. The extra thickness allows the washer to withstand higher clamping forces without deforming, which is necessary for assemblies with screws and heavy-duty clamping sleeves.

Where is the DIN 7349 washer used in practice?

The washer is primarily used in fixture construction, machine engineering, and other applications where bolted joints are subjected to high and concentrated clamping forces, such as in conjunction with clamping sleeves in tool making.

How do I choose the right size for the washer?

The washer's thread size should match the dimension of the screw/clamping sleeve; for example, an M10 washer fits an M10 screw or clamping sleeve of the same dimension. Always ensure that the washer and the screw/clamping sleeve have the same dimension for a secure installation.

Is A2 stainless steel suitable for outdoor and marine environments?

A2 (AISI 304) has good resistance to atmospheric corrosion and is well-suited for normal indoor and outdoor use. In marine environments or in contact with chlorides (e.g., salt water or road salt), the resistance is lower than that of A4, which is preferable in those cases.