Qi Sheng bowl type washers are used in assemblies where improved seating, alignment, or load distribution is required. This washer style can help accommodate slight misalignment and provide more stable contact in certain joint designs, supporting consistent fastening performance.
We offer bowl type washers in various sizes with material and finish options to meet strength and corrosion-resistance needs. OEM and wholesale buyers can source by specification and order in bulk with packaging requirements.
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DIN6796 Conical Spring Washer
Conical spring washer for mechanical fastening applications.

DIN6796 Conical Spring Washer

  1. Complies with ISO 7084, DIN 6796, ANSI B18.21.1; anti-loosening fastener accessories.
  2. Material: Carbon steel, stainless steel (304/316), alloy steel; elastic-grade variants available.
  3. Structure: Conical annular body (open/closed type) + central through hole (matching bolt diameter).
  4. Surface treatments: Carbon steel (zinc plating, black oxide), stainless steel (passivation);
  5. Size: aperture M2–M36, thickness 0.8–5mm, cone height 0.3–3mm
NFE25511 French Anti-loose Conical Washer
NFE25511 French Anti-loose Conical Washer

NFE25511 French Anti-loose Conical Washer

  1. Standard: NF E25-511 (French standard)
  2. Material: Spring steel, alloy steel, stainless steel (304/316); HRC42-45
  3. Structure: Conical annular body + central through hole + single/double-sided serrations
  4. Specifications: M3-M20
  5. Surface treatment: Dacromet, zinc-magnesium plating, black oxide
  6. Types: Standard (Z), enlarged (M), widened (L) – compatible with different bolt head sizes