Complete Guide to Wing Nuts

Wing nuts are a common type of nut, named for their unique appearance. They are easy to install and can be used with bolts, studs, and full-thread studs. They are used in many mechanical equipment and structures, such as medical devices, wind power, aerospace, office equipment, petrochemicals, electronics and communications, and shipbuilding.

What Are Wing Nuts?

Wing nuts (sometimes called butterfly nuts) are a type of manual fastening nut with two “wing” shaped lugs. They can be quickly hand-tightened for installation or removal without tools, and are especially suited for applications requiring frequent adjustments or disassembly.

So, what is the manufacturing process of this butterfly nut or hand-tightened nut? Butterfly nut manufacturing includes three main stages: raw material selection, processing technology (cutting, threading, surface treatment), and quality inspection.

Materials

Butterfly nut material is mostly stainless steel, carbon steel and brass, in the choice of its material should be based on product use and use of working conditions to determine, such as light projects can choose plastic wing nut, and to ensure that the material is in line with the relevant standards and norms.

Processing

Cutting, butterfly nut is usually done by cold heading, automatic lathe, thread rolling, etc., in cutting, pay attention to the selection of tools and grinding to ensure its accuracy and efficiency; thread processing, that is, with the thread of the screw uniformly adjusted to the corresponding length, and then use the thread rolling machine will be the two sides of the thread rolled up, made of screws; Surface treatment, butterfly nut’s surface treatment of hot-dip galvanizing, plating, blackening, polishing, etc., surface treatment on the one hand can enhance the appearance of the product, but also increase the resistance to oxidation and corrosion and other properties of the nut. The surface treatment can enhance the appearance of the product on the one hand, and increase the antioxidant and corrosion resistance of the nut on the other hand.

Quality Inspection

Butterfly nut manufacturing process, the raw materials, cutting processing, thread processing, surface treatment and other aspects to do quality testing to ensure that the nut meets the relevant standards and norms, testing methods such as external diameter, thread size, thread accuracy, thickness of the surface treatment, flatness and so on.

How to Use Butterfly Nuts?

The structure of the butterfly nut is characterized by the “wings” on both sides, which are easy for fingers to grip, and can be tightened or loosened by screwing:

  • Select a wing nut that matches the threads of the bolt or screw.
  • Secure by hand by turning clockwise.
  • When removal is required, simply turn the wing nut counterclockwise.

Benefits of Wing Nuts

  • Fast loading and unloading
  • Hand-tightened, no wrench required
  • Frequent adjustments
  • Simple operation
  • Easy maintenance

Types of Wing Nuts

Round Wing Nut

The wings are arc-shaped or streamlined, and the overall shape is relatively round. Moderate force operation.

Square Wing Nut

The wings are right-angled or flat, and the shape is relatively square. Stronger torque.

Plastic (Nylon) Wing Nut

Nylon wing nut insulation and pressure resistance, tensile and compression resistance, odorless and antibacterial, environmentally friendly materials, good toughness, light weight.

Stamped Wing Nuts

Wing nut wings are stamped and welded from sheet steel, economical, durable, and precision casting.

What Are Wing Nuts Used For?

  • Electrical and electronic: switch panels, distribution boxes, instruments.
  • Furniture assembly: lighting fixtures, folding tables and chairs, exhibition stand assembly.
  • Mechanical equipment: regulating devices, fixing of access parts, installation of protective covers.
  • Outdoor facilities: nautical equipment, fences, trellises, recreational sports structures.
  • Construction works: formwork reinforcements, scene device construction, temporary fastening parts.

Butterfly Nuts: FAQ

No need, it can be operated by hand.

Metric: M4, M5, M6, M8, M10, M12…
Inch: #8-32, 1/4-20, 5/16-18, 3/8-16…

If the load is heavy and the screw is stiff, it is recommended to use brass inserts, nylon nuts, or stainless steel nuts.

Yes, wing nuts are commonly used in applications requiring repeated fastening.

It is recommended to choose a high-profile or forged structure.

If you require wing nut samples, quotes, or customization services, please contact us for more technical support and product information.

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