DIN 315 Stainless Steel 201/304 Wing Nuts with Zinc or Black Finish for Industrial and Automotive Applications

This product is a DIN 315 wing nut, also known as a butterfly nut, designed for fastening applications that require quick installation and easy manual adjustment. The extended wings allow the nut to be tightened or loosened by hand without requiring a wrench or socket.

Specification Table

Surface Treatment Options

Zinc‑Plated Finish The zinc‑plated option provides a treated surface for selected wing nut variants. It can be used for general industrial fastening, equipment assembly, automotive components, and applications where a zinc finish is required.

Black Finish The black finish is also listed as an available surface treatment. It is suitable for applications where a darker appearance or a specific surface finish is preferred.

The final surface treatment should be confirmed together with the selected material, stainless steel grade, thread size, and order quantity.

Application

Stainless steel DIN 315 wing nuts can be used in:

• Heavy industrial equipment
• Water treatment systems
• Automotive components
• Machinery assembly
• Equipment panels
• Removable covers
• Protective guards
• Inspection doors
• Fixtures and jigs
• Brackets and support systems
• Electrical equipment enclosures
• General industrial maintenance

The wing design allows quick hand installation and removal, making the nut suitable for assemblies that require regular inspection, adjustment, cleaning, or maintenance.

For equipment covers and removable panels, the wing nut can be tightened without additional tools. For machinery and industrial fixtures, it can be used with matching bolts, threaded rods, washers, brackets, and mounting plates.

Matching Fasteners

The wing nuts can be matched with:

• Stainless steel hex bolts
• Stainless steel threaded rods
• Stainless steel studs
• Metric machine screws
• Flat washers
• Spring washers
• Lock washers
• Mounting brackets
• Support plates
• Equipment panel fasteners
• Threaded inserts

Typical assembly combinations include:

• Stainless steel wing nut + threaded rod + flat washer
• Wing nut + machine screw + mounting plate
• Wing nut + stainless steel bolt + flat washer
• Wing nut + bracket + threaded stud
• Wing nut + spring washer + removable equipment cover

The matching bolt or threaded rod should use the same metric thread size as the wing nut. For stainless steel assemblies, compatible stainless steel bolts and washers are recommended.

Packing & Delivery

The listed packaging options include:

• Bags
• Cartons
• Pallets
• Custom packaging
• Custom labels
• Custom logos

Delivery time should be confirmed according to:

• Stainless steel 201 or 304 selection
• Thread size
• Surface treatment
• Order quantity
• Custom packaging
• Production schedule

FAQ

1.What type of nut is this?

This is a DIN 315 wing nut, also called a butterfly nut. It is designed for manual tightening and tool‑free adjustment.

2.What stainless steel grades are shown?

The product title shows stainless steel 201 and stainless steel 304.

3.What surface treatments are available?

The listed surface treatments are zinc plated and black.

4.What thread sizes are available?

The listed size range is M3‑M64. Displayed options include M3, M4, M5, M6, M7, M8, M10, M12, and M14, with additional customized sizes.

5.What thread system is used?

The page identifies the thread system as Metric.

6.What standard does the product follow?

The product title identifies DIN 315.

7.Where can these wing nuts be used?

The listed applications include heavy industry, water treatment, general industry, and automotive applications. They are also suitable for removable panels, equipment covers, machinery fixtures, and maintenance assemblies.

8.Can the wing nut be tightened by hand?

Yes. The wing structure is designed for manual tightening and loosening without requiring a wrench.

9.What fasteners are compatible with the wing nut?

The wing nut can be used with matching metric bolts, threaded rods, studs, machine screws, flat washers, spring washers, brackets, and mounting plates.

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Need stainless steel DIN 315 wing nuts for machinery, water treatment, or automotive applications?

Send us your required stainless steel grade, thread size, surface treatment, quantity, and packaging requirements. Our team in Hebei Handan, China can provide a suitable quotation and matching fastening solution.