| Customization: | Available |
|---|---|
| Material: | Brass |
| Type: | Alien |
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Product Description:
A butterfly nut (commonly known as a wing nut) is a type of fastener designed for hand-tightening without the need for tools. It features two prominent "wings" on either side, allowing for easy grip and quick adjustment. These nuts are widely used in applications where frequent assembly and disassembly are required.
Key Features:
Tool-Free Operation - The extended wings enable manual tightening and loosening, making them ideal for quick installations.
Versatile Applications - Commonly used in furniture, automotive, plumbing, HVAC, and DIY projects.
Durable Materials - Available in stainless steel, zinc-plated steel, brass, and nylon for corrosion resistance.
Multiple Sizes & Threads - Compatible with metric (M4, M6, M8, etc.) and imperial (1/4", 3/8", etc.) bolts.
Lightweight & Easy to Handle - Perfect for temporary fastening or applications requiring frequent adjustments.
| Thread Size(d) | M5 | M6 | M8 | M10 | M12 | M16 | M20 | ||
| P | Thread Pitch | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | |
| ds | Nominal | 6.5 | 8 | 10 | 13 | 16 | 20 | 25 | |
| Max. | 6.487 | 7.987 | 9.987 | 12.984 | 15.984 | 19.980 | 24.980 | ||
| Min. | 6.451 | 7.951 | 9.951 | 12.941 | 15.941 | 19.928 | 24.928 | ||
| b | Max. | 9.75 | 11.25 | 13.25 | 16.40 | 18.40 | 22.40 | 27.40 | |
| Min. | 9.25 | 10.75 | 12.75 | 15.60 | 17.60 | 21.60 | 26.60 | ||
| dk | Flat-end | Max. | 10 | 13 | 16 | 18 | 24 | 30 | 36 |
| Knurled Head | Max. | 10.22 | 13.27 | 16.27 | 18.27 | 24.33 | 30.33 | 36.39 | |
| Min. | 9.78 | 12.73 | 15.73 | 17.73 | 23.67 | 29.67 | 35.61 | ||
| ds1 | Max. | 3.86 | 4.58 | 6.25 | 7.91 | 9.57 | 13.33 | 16.57 | |
| Min. | 3.68 | 4.40 | 6.03 | 7.69 | 9.35 | 12.96 | 16.30 | ||
| e | Min. | 3.44 | 4.58 | 5.72 | 6.86 | 9.15 | 11.43 | 13.72 | |
| k | Max. | 4.5 | 5.5 | 7 | 9 | 11 | 14 | 16 | |
| Min. | 4.32 | 5.32 | 6.78 | 8.78 | 10.73 | 13.73 | 15.73 | ||
| g1 | Max. | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 3 | |
| g2 | Max. | 2 | 2.5 | 3.1 | 3.7 | 4.4 | 5 | 6.3 | |
| r | Min. | 0.25 | 0.4 | 0.6 | 0.6 | 0.6 | 0.8 | 0.8 | |
| s | Nominal | 3 | 4 | 5 | 6 | 8 | 10 | 12 | |
| Max. | 3.08 | 4.095 | 5.095 | 6.095 | 8.115 | 10.115 | 12.142 | ||
| Min. | 3.02 | 4.02 | 5.02 | 6.02 | 8.025 | 10.025 | 12.032 | ||
| t | Min. | 2.4 | 3.3 | 4.2 | 4.9 | 6.6 | 8.8 | 10 | |
| Specification Table of Thread Screw | |||||
| Standard | Size | Pitch of thread (mm) | d(mm) | Wire Diameter ±0.02mm | |
| Max | Min | ||||
| Chinese National Standard Coarse Thread 60° | M5 | 0.80 | 4.98 | 4.83 | 4.30 |
| M6 | 1.00 | 5.97 | 5.82 | 5.18 | |
| M7 | 1.00 | 6.97 | 6.82 | 6.18 | |
| M8 | 1.25 | 7.96 | 7.79 | 7.02 | |
| M9 | 1.25 | 8.96 | 8.79 | 8.01 | |
| M10 | 1.50 | 9.96 | 9.77 | 8.84 | |
| M11 | 1.50 | 10.97 | 10.73 | 9.84 | |
| M12 | 1.75 | 11.95 | 11.76 | 10.7 | |
| M14 | 2.00 | 13.95 | 13.74 | 12.5 | |
| M16 | 2.00 | 15.95 | 15.74 | 14.5 | |
| M18 | 2.50 | 17.95 | 17.71 | 16.20 | |
| M20 | 2.50 | 19.95 | 19.71 | 18.2 | |
| Chinese National Standard Fine Thread 60° | M5 | 0.50 | 4.97 | 4.86 | 4.57 |
| M6 | 0.75 | 5.97 | 5.85 | 5.41 | |
| M7 | 0.75 | 6.97 | 6.85 | 6.41 | |
| M8 | 1.00 | 7.97 | 7.83 | 7.24 | |
| M9 | 1.00 | 8.97 | 8.83 | 8.24 | |
| M10 | 1.00 | 9.97 | 9.82 | 9.23 | |
| M10 | 1.25 | 9.96 | 9.81 | 9.07 | |
| M12 | 1.25 | 11.97 | 11.76 | 11.07 | |
| M12 | 1.50 | 11.96 | 11.79 | 10.89 | |
| M14 | 1.50 | 13.96 | 13.79 | 12.89 | |
| M16 | 1.50 | 15.96 | 15.79 | 14.89 | |
| M18 | 1.50 | 17.95 | 17.73 | 16.86 | |
| M20 | 1.50 | 19.95 | 19.65 | 18.85 | |
| Specification Table of Thread Screw | |||||
| Standard | Size | Thread per inch | d(mm) | Wire Diameter ±0.02mm | |
| Max | Min | ||||
| British Standard Whitworth Thread (Coarse) 55° | 1/8 | 40 | 3.145 | 3.03 | 2.70 |
| 5/32 | 32 | 3.945 | 3.795 | 3.38 | |
| 3/16 | 24 | 4.732 | 4.592 | 4.00 | |
| 1/4 | 20 | 6.32 | 6.165 | 5.45 | |
| 5/16 | 18 | 7.905 | 7.737 | 6.94 | |
| 3/8 | 16 | 9.49 | 9.312 | 8.4 | |
| 7/16 | 14 | 11.2 | 10.88 | 9.84 | |
| 1/2 | 12 | 12.66 | 12.46 | 11.22 | |
| 9/16 | 12 | 14.25 | 14.04 | 12.81 | |
| 5/8 | 11 | 15.83 | 15.61 | 14.27 | |
| Unified Coarse Pitch Thread ( American Standard) 60° | 4# | 40 | 2.824 | 2.695 | 2.37 |
| 5# | 40 | 3.154 | 3.026 | 2.69 | |
| 6# | 32 | 3.484 | 3.333 | 2.91 | |
| 8# | 32 | 4.142 | 3.991 | 3.57 | |
| 10# | 24 | 4.80 | 4.618 | 4.05 | |
| 12# | 24 | 5.461 | 5.279 | 4.7 | |
| 1/4 | 20 | 6.322 | 6.117 | 5.45 | |
| 5/16 | 18 | 7.907 | 7.687 | 6.93 | |
| 3/8 | 16 | 9.491 | 9.254 | 8.40 | |
| 7/16 | 14 | 11.08 | 10.82 | 9.83 | |
| 1/2 | 13 | 12.66 | 12.39 | 11.32 | |
| 9/16 | 12 | 14.25 | 13.96 | 12.8 | |
| 5/8 | 11 | 15.83 | 15.53 | 14.26 | |
| Unified Fine Pitch Thread ( American Standard) 60° | 4# | 48 | 2.877 | 2.713 | 2.44 |
| 5# | 44 | 3.157 | 3.036 | 2.73 | |
| 6# | 40 | 3.484 | 3.356 | 3.02 | |
| 8# | 36 | 4.145 | 4.006 | 3.63 | |
| 10# | 32 | 4.803 | 4.651 | 4.23 | |
| 12# | 28 | 5.461 | 5.296 | 4.81 | |
| 1/4 | 28 | 6.324 | 6.16 | 5.68 | |
| 5/16 | 24 | 7.909 | 7.727 | 7.16 | |
| 3/8 | 24 | 9.497 | 9.315 | 8.74 | |
| 7/16 | 20 | 11.08 | 10.87 | 10.18 | |
| 1/2 | 20 | 12.67 | 12.46 | 11.76 | |
| 9/16 | 18 | 14.25 | 14.03 | 13.25 | |
| 5/8 | 18 | 15.83 | 15.62 | 14.83 | |
| Advanced Planning | Process Control | Quality Issue Feedback |
| ·Multi-functional project team ·Build up standard tree,do the analysis and training ·DFMEA ·4 stage project review, quality gate ·PFMEA ·Visualized WI |
·First and final piece100% inspection. ·Combine self-inspect and patrol inspect. ·Regular inspection on fixture and gauges. ·Upper andlower process error prevention control ·5M1E management |
·Quick feedback, arrive sitewithin 10 minutes ·Define interim and containment action within 4hours ·Daily quick response meeting ·8D ·6 Sigma ·Actions follow-upvalidation ·Share to similarproducts ·Record into failure mode database |
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