Wing Bolt Spec Table
This specification follows DIN (Deutsches Institut für Normung, German Industrial Standard). It is essential when maintaining German or European-sourced equipment and when supplying to the European market.
A wing bolt that can be tightened by hand without tools, convenient for parts that need frequent disassembly.
Practical Notes
- Hand-tightening only; torque limited to 3–15 N·m. Never use where structural strength is required.
- Easily loosens under vibration — unsuitable for safety-critical applications. Use threadlocker or wire locking if needed.
Selection Guide
For hand tightening without tools where frequent removal is needed — inspection jigs, covers, filter access points. M4–M12 range, limited to 3–15 N·m torque. Easily loosens under vibration; avoid for safety-critical applications.
Wing BoltDINWing Bolt
5 sizes| Nominal | d | P | Head Dia | Wrench | Other |
|---|---|---|---|---|---|
| M4 | 4 | 0.7 | - | - | - |
| M5 | 5 | 0.8 | - | - | - |
| M6 | 6 | 1 | - | - | - |
| M8 | 8 | 1.25 | - | - | - |
| M10 | 10 | 1.5 | - | - | - |
Key Features
- Wing-shaped head enables tool-free hand tightening and loosening
- Small range M4–M12; light-duty with fastening torque around 3–15 N·m
- Cast iron, stainless steel, or nylon wing materials available
Key Applications
Inspection jig clamps, vent covers, temporary installations, filter access, exhibition booth assembly
FAQ
Maximum tightening torque for wing bolts?
Hand-tightening only, approximately 3–15 N·m. Tool tightening breaks the wings — always tighten by hand only.