Wing Nuts Manufacturer
MT.BOLTS manufactures Wing Nuts, which are specialty fasteners designed for easy hand tightening and loosening without the need for tools. Featuring two wing-like projections on either side of the nut body, wing nuts provide a user-friendly grip and are ideal for applications requiring frequent adjustments, temporary assemblies, or tool-free operation. MT.BOLTS offers wing nuts in a range of sizes, materials, and surface finishes to suit both light-duty and industrial requirements.
- System of Measurement:
- Metric: M4 – M20
Imperial: 1/4″ to 3/4″ - Height Range (Thickness):
- Metric: 5 mm to 25 mm
Imperial: 3/16″ to 1″
(Actual height may vary depending on wing span design) - Thread Pitch:
- Metric: Coarse (standard)
- Imperial: UNC, UNF
- Thread Type:
- Right-hand thread (standard)
- Left-hand thread (optional on request)
- Wing Nut Types:
- Cold Forged Wing Nut (standard type)
- Hot Forged Wing Nut (for higher strength applications)
- Pressed Sheet Metal Wing Nut
- Thumb Wing Nut (with ergonomic grip enhancements)
- Plastic Wing Nut (light-duty, corrosion-resistant)
- Stainless Steel Wing Nut (for marine or outdoor use)
Wing Nuts Material Types
MT.BOLTS supplies carbon steel, stainless steel, duplex steel, and nickel-based alloy Wing Nuts, meeting the demanding requirements of chemical, marine, and high-temperature environments, compliant with various international standards.
| Material Category | Common Grades/Models | Description |
| Carbon Steel | ASTM A307, A325, A490 | High strength and cost-effective, suitable for general structures; requires anti-corrosion coating. |
| Stainless Steel | 304 (A2), 316 (A4), 321, 410 | Excellent corrosion resistance; widely used in food, chemical, and construction industries |
| Duplex Stainless Steel | UNS S31803/S32205 (F51), UNS S32750 (F53) | High strength with superior chloride corrosion resistance; used in seawater, petrochemical, and paper industries |
| Monel Alloys | Monel 400, Monel K500 | Excellent seawater corrosion resistance and mechanical strength; used in marine engineering and pump systems |
| Hastelloy Alloys | Hastelloy C276, C22, B2, X | Excellent resistance to strong acids and oxidizing media; widely used in chemical equipment and flue gas desulfurization |
| Inconel Alloys | Inconel 600, 625, 718 | Resistant to high temperature, pressure, and corrosion; used in heat exchangers, aerospace, and nuclear industries |
| Incoloy Alloys | Incoloy 800, 825, 925 | Ideal for high-temperature acidic environments; widely used in petroleum refining and heat treating systems |
| Nickel Alloys | Nickel 200, 201 | Pure or high-nickel alloys with excellent conductivity and alkali resistance; used in electronics and chemical applications |
Wing Nuts System of Measurement
Wing nuts are manufactured in both Metric and Imperial (Inch) systems to meet various global requirements:
Metric Sizes: M4, M5, M6, M8, M10, M12, M16, M20
Imperial Sizes: 1/4″, 5/16″, 3/8″, 1/2″, 5/8″, 3/4″
Thread Pitch:
Metric: Coarse thread (standard)
Imperial: UNC (Unified Coarse), UNF (Unified Fine – optional)
Thread Direction:
Standard: Right-hand thread
Optional: Left-hand thread (available upon request)
Wing nuts are typically used in low to medium load applications where tool-free tightening is desired.
Wing Nuts Common Standards
Several international and national standards govern the manufacturing and performance of wing nuts:
DIN 315 – Metric standard for forged or stamped wing nuts
ASME B18.6.9 – Inch-series standard for wing nuts
ISO 888 – International standard reference for wing nuts
GB/T 62 – Chinese national standard
JIS B1185 – Japanese standard for hand-tightened nuts
OEM / Custom Standards – For specific industries such as aerospace, electronics, or furniture
These standards define dimensional tolerances, material types, and mechanical properties.
Wing Nuts Surface Finishes
Surface coatings enhance corrosion resistance, aesthetics, and durability. MT.BOLTS offers the following finishes:
Plain (Uncoated) – For indoor or dry environments
Zinc-Plated – Clear or yellow, general corrosion protection
Nickel-Plated – Improved corrosion resistance and appearance
Hot-Dip Galvanized – For outdoor or marine use
Black Oxide – Mild protection, typically aesthetic
Passivated – For stainless steel to enhance corrosion resistance
Custom Finishes – Available for decorative or specialized applications
Why Choose MT.BOLTS
- Material Diversity
- Standardized Production
- Ample Inventory
- Competitive Pricing
- Low-MOQ Customization
Benefits and Limitations of Wing Nuts
Advantages
Tool-Free Operation – Easily tightened or removed by hand
Quick Assembly/Disassembly – Ideal for temporary or adjustable setups
Lightweight & Simple Design – Easy to use, low cost
Widely Available – Suitable for a broad range of applications
Disadvantages
Limited Load Capacity – Not suitable for high-torque or high-strength applications
Manual Tightening Only – Cannot achieve precise preload
Wing Protrusions – May interfere with compact assemblies
Not Vibration Resistant – May loosen over time in dynamic conditions unless combined with lock washers
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Wing Nuts Applications
Wing nuts are widely used in applications requiring frequent adjustments or tool-free access:
Furniture Assembly – Beds, shelves, and flat-pack furniture
Lighting and Rigging – Stage and event setup
Electronics and Enclosures – Panels and access doors
HVAC Systems – Filter housings, ductwork
Signage and Display Units – Temporary structures
DIY and Home Improvement Projects
Marine and Boating Equipment – For removable fixtures
FAQ About Wing Nuts
Carbon steel, stainless steel (304/316), brass, aluminum, and plastic (for light-duty use).
Yes, if made of stainless steel or treated with weather-resistant coatings such as hot-dip galvanizing or nickel plating.
Yes, they are designed for repeated hand-tightening and removal.
Not always, but flat or lock washers may be used to improve load distribution or prevent loosening.
No, they are generally for low to moderate loads. Use hex nuts or lock nuts for high-stress applications.
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