Products Description

The Wing Nut is a fastener designed for manual operation with easy-to-grip wing-like protrusions on both sides. This design allows the user to easily tighten or loosen the nut without the use of tools. The wings on both sides not only add stability and grip during tightening, but also make handling easier. Wing nuts are usually made of metal materials, such as steel or cast iron, ensuring their strength and durability. When using it you need to keep the bolt or screw perpendicular to the axis of the nut to keep the wings close together.

Contact now

Parameter

Item	Details
Executive Standard	DIN315 German Industrial Standard
Official Name	Wing Nuts
Alias	Butterfly Nut
Raw Material	Carbon Steel, Alloy Steel
Strength Grade	Grade 4.8, Grade 5.8, Grade 8.8
Nominal Diameter Range	M2 – M48
Thread Pitch	0.4mm – 5mm
Surface Treatment	ZP (Zinc Plated), YZ (Yellow Zinc Plated), BLACK (Black Oxide Finish)

Core Design Advantage

The bilateral integrated butterfly wings provide large gripping area for finger force application. Users can directly rotate the nut by pinching the two wings to complete tightening or loosening without any auxiliary tools. The central precision internal thread cooperates with standard bolts to form clamping locking; during operation, keep the bolt perpendicular to the nut axis to ensure uniform stress on the double wings and avoid unilateral bending damage.

Learn more >>

Selection Guidance

Frequent hand adjustment, indoor light load: Grade 4.8 + ZP white zinc plating for cost efficiency
Medium load, humid working environment: Grade 5.8 + YZ yellow zinc plating for improved corrosion resistance
Medium heavy load, mechanical vibration conditions: Grade 8.8 high-strength alloy steel version
High-temperature operating mechanical components: Black oxide (BLACK) surface treatment
Precision tiny assembly: M2-M6 small-size wing nuts with fine pitch thread