DIN 315 Wing Nuts M3-M20 | Stainless Steel Butterfly Nuts | Zinc Plated DIN 315 Wing Nut Factory

High-quality DIN 315 Wing Nuts (Butterfly Nuts) for effortless hand-tightening. Available in M3-M20 sizes, our nuts are forged from 304/316 Stainless Steel or Zinc-Plated Carbon Steel. Featuring an ergonomic wing design for high leverage, these fasteners are perfect for furniture, machinery, and marine applications requiring frequent adjustments.
  • Standard: DIN 315
  • Material: Stainless Steel / Carbon Steel / Brass
  • Sizes: M3 to M20 Metric threads
  • Feature: Precision threading for tool-free assembly.
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Premium DIN 315 Wing Nuts: Versatile Fastening for Hand-Tightened Applications

Our DIN 315 Wing Nuts, often referred to as Butterfly Nuts, are the industry standard for applications requiring frequent manual adjustments. Engineered for ease of use, these fasteners feature two large “wings” that allow for quick tightening and loosening by hand, eliminating the need for wrenches or specialized tools.

Whether you are in the furniture industry, stage lighting, or marine equipment maintenance, our M3-M20 wing nuts provide a secure and reliable hold. We manufacture these nuts strictly to DIN 315 dimensions, ensuring perfect thread compatibility and consistent wing span for maximum leverage.

Key Advantages of Our DIN 315 Series

  • Tool-Free Operation: The ergonomic wing design provides excellent grip, allowing users to apply sufficient torque manually.
  • Corrosion-Resistant Materials: Available in 304 and 316 Stainless Steel for high-moisture environments, and Zinc-Plated Carbon Steel for cost-effective indoor use.
  • Precision Threading: Every M6 and M8 wing nut is tapped with precision to meet 6H tolerance standards, preventing cross-threading.
  • Durable Casting: Our manufacturing process ensures that the wings are robust and resistant to snapping under heavy hand pressure.

DIN 315 Dimensions & Specifications

Below is the technical data for our metric butterfly nuts. Custom sizes and ANSI/ASME standard wing nuts are also available upon request.

Thread SizeWing Span (e)Total Height (h)Base Diameter (d2)
M420 mm10.5 mm8.0 mm
M626 mm13.0 mm11.0 mm
M833 mm17.0 mm13.5 mm
M1039 mm20.0 mm15.5 mm
M1251 mm25.0 mm20.0 mm

Common Applications for Butterfly Nuts

Thanks to their versatility, DIN 315 wing nuts are used in countless industries:

  • Marine & Boating: Stainless steel 316 options are used for battery terminals and deck fittings.
  • Furniture Assembly: Ideal for collapsible tables and adjustable shelving units.
  • Machinery Maintenance: Used on access panels that require regular inspection.
  • Photography Gear: Essential for tripods, light stands, and camera rigs.

Frequently Asked Questions

Q: What is the difference between DIN 315 and American style wing nuts?
A: DIN 315 typically features a more rounded wing shape, while American styles (ASME) may have a more angular or rectangular wing profile.

Q: Can I get M20 wing nuts in hot-dip galvanized?
A: Yes, we provide HDG coatings for larger sizes like M16 and M20 for outdoor structural applications.

Source DIN 315 Wing Nuts from a Trusted Factory

We offer competitive wholesale pricing on bulk orders of M3 to M20 Wing Nuts. Custom packaging and branding services are available.

Request a Quote & Samples

Material

Stainless Steel (304/316), Carbon Steel, Brass

Standard

DIN 315 / ASME B18.6.9

Surface Finish

Zinc Plated, Hot Dip Galvanized, Polished

Thread Size

M3, M4, M5, M6, M8, M10, M12, M16, M20

Wing Shape

Rounded Wings (DIN 315)

Application

Machinery, Electronics, Furniture, DIY