




The DIN316 Wing Bolt (Butterfly Screw) features distinctive wing-shaped heads for easy hand tightening and removal without tools. Made from high-quality stainless steel 304/316, it offers excellent corrosion resistance and durability.
Ideal for applications requiring frequent adjustment, such as machinery covers, fixtures, furniture, and light assemblies.
Tool-Free Operation: Wing design allows quick hand tightening and loosening.
Corrosion Resistant: Premium stainless steel ensures long-term performance in harsh environments.
Secure & Reliable: Strong threading provides stable hold with easy adjustment.
| Property | Specification |
| Product Name | Wing Bolt (Butterfly Screw / Thumbscrew) |
| Standard | DIN316 |
| Material | Stainless Steel 304/316 (Custom: Carbon Steel) |
| Size Range | M2 - M48 (Customizable) |
| Finish | Plain / Polished (Custom: Zinc Plated) |
| Grade | A2-70 / A4-80 (Custom: 4.8 to 12.9) |
| Thread | Metric / UNC / UNF |
| Custom Support | OEM/ODM Available |
Factory Direct Price | Fast Delivery | OEM Service
Email: admin@changhua-electrical.com | WhatsApp: +86 181 3296 8158
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![]() Advanced Cold Heading Precision manufacturing. | ![]() Optical Sorting 0-PPM defects. | ![]() Lab Testing Tensile & Salt Spray. |
![]() Machinery Covers Quick Adjustment | ![]() Furniture Tool-Free Assembly | ![]() Light Fixtures Easy Maintenance |
Q: Can I get free samples?
Yes! We provide free samples for standard wing bolts. You only need to cover the shipping cost.
Q: What materials and sizes do you support?
Stainless steel 304/316 standard, M2-M48. Custom options available.
Q: What certifications do you have?
We are ISO9001:2015 Certified. Every shipment comes with a Factory Quality Inspection Report.
Q: What is your delivery time?
Stock items: 3-7 days. Mass production: 20-30 days.
Q: Can you produce according to drawings?
Yes, OEM/ODM is our strength. Send us CAD drawings for a quote within 24 hours.
Q: What are your payment terms?
We generally accept T/T (30% deposit, 70% before shipment). For long-term partners, we can discuss L/C.
Get in touch for more information, pricing, or custom requirements.