Upgrade your fastening game with these solid brass wing nuts (butterfly nuts), designed for effortless hand-tightening without any tools. Ideal for makers, woodworkers, 3D printer enthusiasts, and home DIYers, these metric wing nuts fit a wide range of screws and bolts from M3 up to M16. The brass construction offers natural corrosion resistance and a classic, professional look — perfect for jigs, fixtures, furniture assembly, or repair jobs where quick, frequent adjustments are needed. Simply spin them on with your fingers and enjoy a secure, vibration-resistant hold.
🔩 Key Features of Brass Butterfly Wing Nuts
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Premium Brass Material: Corrosion-resistant solid brass, ideal for indoor and light outdoor use — won’t rust like steel.
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Tool-Free Hand Tightening: Wing design allows quick fastening and loosening by hand, saving time on adjustments.
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Wide Metric Size Range: Compatible with M3, M4, M5, M6, M8, M10, M12, M14, and M16 coarse-thread screws and bolts.
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Clean, Unbranded Finish: Brand-new, unopened, unmarked parts with a uniform golden brass tone — blends into projects seamlessly.
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Versatile Use Cases: Perfect for 3D printer beds, woodworking jigs, lamp making, machinery guards, and general repairs.
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Secure Hold & Reusable: Provides a strong clamping force and can be removed and reinstalled repeatedly without thread damage.
📋 Metric Wing Nut Specifications
| Specification |
Detail |
| Material |
Brass |
| Condition |
Brand New – Unused, unopened |
| Thread Standard |
Metric Coarse |
| Available Thread Sizes |
M3 / M4 / M5 / M6 / M8 / M10 / M12 / M14 / M16 |
| Drive Style |
Hand-tighten (wing grip) |
| Country of Origin |
China |
| Package Includes |
Butterfly wing nuts only (screws and bolts not included) |
| Color / Finish |
Natural brass gold tone |
❓ Brass Wing Nuts FAQ – Your Questions Answered
🔸 Are screws or bolts included with these wing nuts?
No, this listing is for the brass wing nuts only. You will need to supply your own matching metric bolts or screws. These fit standard M3 to M16 coarse-thread fasteners.
🔸 Will these brass wing nuts work outdoors or in humid environments?
Yes, brass is naturally rust-resistant, making these suitable for outdoor projects and moisture-prone areas. However, like all brass, they may develop a patina over time. If you need to maintain the bright gold look, occasional cleaning is recommended.
🔸 How do I choose the right size for my bolt?
Simply match the “M” number on your bolt (e.g., an M6 bolt needs an M6 wing nut). All sizes follow the metric system. If you are unsure, measure the outer diameter of the bolt thread in millimeters — a 6mm thick bolt typically uses an M6 nut.
🔸 Can these be tightened securely without tools?
Absolutely. The large wing design is engineered for firm hand-tightening. For most woodworking, 3D printing, and light structural applications, a hand-tighten is sufficient. If you need extreme torque, you can use pliers, but be gentle to avoid marring the brass surface.
🔸 I need quantities not listed. Do you offer bulk options?
Please check the available quantity variations in the listing. If you do not see the pack size you need, feel free to reach out — we may accommodate larger orders or custom assortments of metric wing nuts.
