Products Description
Wing bolts (also called wing screws, thumb screws, or butterfly bolts) are specialized fasteners with a wing-shaped head, designed for tool-free hand tightening & loosening. Ideal for frequent adjustments, quick assembly, and maintenance access across industries.
Parameters
|
Standard |
DIN316 |
|
Name |
Wing Bolt |
|
Material |
Carbon steel and alloy steel, etc. |
|
Grade |
Grade 4.8, 5.8, 8.8 |
|
Nominal Diameter |
M2-M48 |
|
Pitch |
0.4-5 |
|
Surface treatment |
ZP,YZ,BLACK |
|
Alias |
Butterfly bolt, hand screw bolt |
Key Features
Tool-free operation
The dual-sided flanges provide an ergonomic grip surface, allowing for tightening by hand and significantly improving assembly and maintenance efficiency.
Quick Installation and Removal
Ideal for applications requiring repeated opening, closing, adjustment, or temporary fastening, significantly saving time.
Moderate Clamping Force
Manual tightening torque typically ranges from 5 to 15 N·m (depending on flange size and material), meeting fastening requirements for light to medium loads.
Optional Locking Mechanisms
Some models feature nylon anti-loosening rings or all-metal locking structures at the threaded end to prevent loosening due to vibration.
Our Products
Installation and Usage Notes
- Hand-Tightening Torque Limitation: Avoid over-tightening with wrenches or pliers, as this can easily damage the wing plates or cause thread stripping.
- Anti-Vibration Measures: In high-vibration environments (e.g., engines, compressors), it is recommended to use wing bolts with nylon lock washers or in conjunction with spring washers.
- Thread Fit: Ensure the thread length matches the workpiece depth to prevent interference between the bottom of the wing plate and the workpiece, which would result in insufficient locking.
- Environmental Compatibility: Prioritize stainless steel or thick-plated products for outdoor or humid environments; consider material corrosion resistance for chemical environments.
- Ergonomics: Wing plate edges should be smooth and burr-free to prevent hand injuries. For large-size wing bolts, extended wing plates are recommended to reduce localized hand pressure.
FAQ
Q: Can wing bolts replace standard hex bolts?
A: Only in low‑torque, non‑critical applications. Wing bolts are designed for hand tightening, not for high preload or vibration‑prone environments.
Q: How to prevent wing bolts from loosening under vibration?
A: Use a spring washer, nylon patch, or thread‑locking fluid.
Q: Are wing bolts the same as thumb screws?
A: Similar but not identical. Thumb screws usually have a knurled or fluted head, while wing bolts provide higher leverage with two large wings.
Q: Do you sell matching wing nuts?
A: Yes, we also supply wing nuts in the same materials and finishes.
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