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Koniska spännbrickor DIN 6796 i syrafast A4 rostfritt stål för säkra och vibrationsbeständiga skruvförband.
Teknisk måttritning och dimensionstabell för koniska spännbrickor DIN 6796 i syrafast A4 rostfritt stål för olika skruvdimensioner.
Koniska spännbrickor DIN 6796 i syrafast A4 rostfritt stål för säkra och vibrationsbeständiga skruvförband.
Koniska spännbrickor DIN 6796 i syrafast A4 rostfritt stål för säkra och vibrationsbeständiga skruvförband.
Teknisk måttritning och dimensionstabell för koniska spännbrickor DIN 6796 i syrafast A4 rostfritt stål för olika skruvdimensioner.
Koniska spännbrickor DIN 6796 i syrafast A4 rostfritt stål för säkra och vibrationsbeständiga skruvförband.

Conical spring washer | A4 | DIN 6796

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SKU: 102144
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Description

Do you need a conical spring washer that keeps your joint secure even under vibrations, temperature fluctuations, and dynamic loads? Conical spring washer DIN 6796 in A4 is developed to provide high spring force and maintained preload over a long period, even in harsh environments.

Thanks to its conical shape, the spring washer acts as a powerful spring, compensating for settling and relaxation in the bolted joint. The acid-proof material quality makes the washer highly resistant to corrosion in salt, moisture, and chemical environments.

APPLICATION AREA

Perfect for vibration- and safety-critical bolted joints in offshore, marine applications, the energy industry, chemical process industry, and machine construction. The washer is often used together with hexagon screws and nuts to prevent loosening and ensure long-term clamping force. Easy to install and requires no extra maintenance.

Watch video: Which washer should you choose?

TECHNICAL SPECIFICATIONS

  • Product type: Conical spring washer

  • Standard: DIN 6796

  • Grade: A4 (AISI 316) acid-proof stainless steel

  • Material class: Not applicable

  • Thread type: Not applicable

  • Surface treatment: Untreated (natural stainless steel)

  • Head shape: Conical washer

  • Drive type: Not applicable

FREQUENTLY ASKED QUESTIONS (FAQ)

How does a conical spring washer according to DIN 6796 work and what distinguishes it from a spring washer (DIN 127)?

DIN 6796 is a disc-shaped spring washer designed for high-strength bolted joints. Unlike a standard split spring washer, DIN 6796 provides extremely high axial force when flattened during tightening. It acts as a powerful disc spring that stores mechanical energy and maintains a constant preload in the joint even if the material settles or expands due to heat.

Why is the conical spring washer so effective against vibration loosening and temperature fluctuations?

During vibrations, temperature changes, or dynamic loads, insignificant movements or "settling" often occur in fasteners, causing standard screws to lose their preload and unscrew. DIN 6796 continuously compensates for these microscopic dimensional changes through its high spring-back force, thereby preventing the joint from spontaneously loosening.

Why is acid-proof A4 / AISI 316 necessary for DIN 6796 washers?

Acid-proof A4 steel (AISI 316 / 1.4401) is alloyed with molybdenum, which protects against pitting, stress corrosion, and crevice corrosion under high pressure. In harsh environments such as marine equipment, the chemical industry, and outdoor installations, A4 material ensures that the washer is not subject to corrosion-induced fatigue cracks, but instead retains its elastic spring capacity.