Wing Nut

What is a Wing Nut?

A Wing Nut is a type of internally threaded fastener with two extended “wings” on either side, allowing for manual tightening and loosening without the need for tools. Its ergonomic design makes it ideal for applications requiring frequent adjustments, quick assembly, or temporary fastening. Wing nuts are commonly used in light-duty applications across furniture, equipment panels, fixtures, and consumer goods.

Offering a perfect blend of convenience and reusability, wing nuts are widely preferred in industries where hand operations are essential.

Key Features

  • Tool-Free Operation – Wings allow for hand-tightening and removal without tools.
  • Quick Assembly – Ideal for temporary fastening or applications needing regular adjustments.
  • User-Friendly Design – Easy grip ensures fast and secure installation.
  • Multiple Materials – Available in carbon steel, brass, stainless steel, and plastic.
  • Surface Finish Options – Offered in zinc plating, chrome, black oxide, and more.

Specifications

Mechanical Properties

Chemical Composition

Equivalent Grades

Weight Chart

Specifications

ParameterSpecification
Size RangeM3 to M20
Thread TypesMetric, UNC, UNF
Manufacturing MethodsCold Forged, Die Cast, CNC Machined
Material OptionsCarbon Steel, Stainless Steel, Brass, Nylon
StandardsDIN 315, ISO wing nut specs, ASTM A563
Finishes AvailableZinc Plated, Nickel Plated, Chrome, Black Oxide, Painted
PropertyValue
Proof Load300 – 600 MPa (grade-specific)
Hardness80 – 250 HB
Elongation10% – 20%
Temperature Range-20°C to 150°C (material-dependent)
ElementPercentage (%)
Carbon (C)0.35 – 0.50
Manganese (Mn)0.60 – 0.90
Silicon (Si)0.10 – 0.35
Phosphorus (P)≤ 0.040
Sulfur (S)≤ 0.050
Iron (Fe)Balance
Note: Composition varies based on material (steel, brass, stainless, or nylon).
StandardEquivalent Grade
ASTMA563
DIN315
ISO4759-1
JISB1182
BS1552
Nut Size (mm)Thread Pitch (mm)Weight (kg)
M40.70.20
M61.00.45
M81.250.80
M101.51.50
M121.752.30
M162.04.00

Applications of Wing Nuts

Construction &
Infrastructure

Automotive & Heavy
Equipment

Manufacturing &
Fabrication

Medical & Laboratory
Equipment

Electrical &
Electronics Assembly

Oil, Gas & Petrochemical
Installations

Do you have questions?

Wing nuts are ideal for applications requiring frequent hand tightening, such as clamps, furniture assemblies, and covers or panels.
They are best suited for light to moderate load applications. For heavy structural needs, standard hex or lock nuts are preferred.
Yes, we supply wing nuts in various materials including nylon (for insulation and corrosion resistance) and stainless steel (for outdoor or marine use).
Yes. We cater to both bulk domestic and international orders, including test certificates and export packaging as required.

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