Wing Nut
What are Wing Nuts?
A Wing Nut is a type of internally threaded fastener with two extended “wings” on either side, allowing for manual tightening and loosening without the need for tools. Its ergonomic design makes it ideal for applications requiring frequent adjustments, quick assembly, or temporary fastening.
Offering a perfect blend of convenience and reusability, wing nuts are widely preferred in industries where hand operations are essential.
Key Features
Leak-Proof
Jointing
Durable
Construction
Easy Installation
& Removal
Wide
Compatibility
Corrosion
Resistant
Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Nominal Size | M3 to M100 (custom sizes available) |
| Pressure Ratings | ANSI / ASME Class | Class 2, 5, 8, 10, 12 |
| PN Ratings | – | PN6, PN10, PN16, PN25, PN40, PN64 |
| Product Types | Hex Nut Types | Standard Hex Nut, Heavy Hex Nut, Jam Nut, Flange Nut, Lock Nut |
| Material Options | Stainless Steel | SS 304, SS 304L, SS 316, SS 316L, SS 321 |
| Carbon Steel | ASTM A194, ASTM A563, ASTM A105 | |
| Alloy Steel | Alloy Steel Grade 8, ASTM A194 Grade 2H | |
| Other Materials | Brass, Bronze, Monel, Nickel, Titanium | |
| Standards & Certifications | ASTM | ASTM A194, ASTM A563, ASTM A105 |
| ASME / ANSI | ASME B18.2.2, ASME B18.2.4.6 | |
| European Standards | DIN 934, EN 24032 | |
| Certifications | ISO 9001, PED 2014/68/EU, NACE MR0175 | |
| Design Features | Thread Type | Full Threaded, Partially Threaded, Coarse, Fine |
| Tolerance | As per ISO, ANSI, DIN standards | |
| Surface Treatment | Plain, Zinc Plated, Nickel Plated, Hot Dip Galvanized, Passivated | |
| Coating & Surface Finish | Anti-Corrosion Coating | Zinc, Nickel, PTFE, Passivation |
| Optional Coatings | Black Oxide, Phosphate, Epoxy | |
| Surface Finish | Plain, Polished, Passivated | |
| Testing & Inspection | Mechanical Testing | Tensile Strength, Hardness, Yield Strength |
| Non-Destructive Testing | Visual Inspection, Thread Gauge, Magnetic Particle Testing (if applicable) | |
| Destructive Testing | Tensile, Hardness, Impact |
Dimensions
| Nominal Size (M) | Thread Pitch (mm) | Width Across Wings (W) mm | Height / Thickness (H) mm | Internal Thread Diameter (d) mm | Material Type | Standard |
|---|---|---|---|---|---|---|
| M3 | 0.5 | 10 | 5 | 3 | Carbon Steel / SS | DIN 315 / ISO 8677 |
| M4 | 0.7 | 13 | 6 | 4 | Carbon Steel / SS | DIN 315 / ISO 8677 |
| M5 | 0.8 | 16 | 8 | 5 | Carbon Steel / SS | DIN 315 / ISO 8677 |
| M6 | 1.0 | 20 | 10 | 6 | Carbon Steel / SS | DIN 315 / ISO 8677 |
| M8 | 1.25 | 25 | 12 | 8 | Carbon Steel / SS | DIN 315 / ISO 8677 |
| M10 | 1.5 | 32 | 16 | 10 | Carbon Steel / SS | DIN 315 / ISO 8677 |
| M12 | 1.75 | 38 | 18 | 12 | Carbon Steel / SS | DIN 315 / ISO 8677 |
| M16 | 2.0 | 50 | 24 | 16 | Carbon Steel / SS | DIN 315 / ISO 8677 |
| M20 | 2.5 | 62 | 30 | 20 | Carbon Steel / SS | DIN 315 / ISO 8677 |
| M24 | 3.0 | 75 | 36 | 24 | Carbon Steel / SS | DIN 315 / ISO 8677 |
| M30 | 3.5 | 90 | 45 | 30 | Carbon Steel / SS | DIN 315 / ISO 8677 |
Mechanical Properties
| Property | Value | Unit / Standard |
|---|---|---|
| Tensile Strength | 350 – 600 | MPa (Carbon Steel, Stainless Steel) |
| Yield Strength | 150 – 400 | MPa |
| Hardness | 100 – 180 | HB (Brinell) |
| Elongation | ≥ 15 – 25 | % |
| Density | 7.8 – 8.0 g/cm³ (Steel) / 8.0 – 8.9 g/cm³ (SS) | – |
| Impact Toughness | ≥ 20 – 60 | J (Charpy, grade-dependent) |
| Modulus of Elasticity (E) | ~200 | GPa |
| Fatigue Strength | 200 – 400 | MPa |
| Corrosion Resistance | Good to Excellent (SS > CS) | – |
| Thermal Conductivity | 15 – 50 | W/m·K |
| Coefficient of Thermal Expansion | 11 – 17 ×10⁻⁶ | /°C |
| Yield Ratio (YS/UTS) | 0.35 – 0.65 | – |
| Poisson’s Ratio | 0.27 – 0.30 | – |
| Brinell Hardness Range | 100 – 180 | HB |
| Surface Finish | Serrated / Stock / Smooth | Per DIN 315 / ISO 8677 |
| Thread Type | Metric / UNC / UNF | As per standard |
| Operating Temperature Range | -20 to 400 | °C (material-dependent) |
| Pressure Rating | N/A | – |
Chemical Composition
| Element | SS 304 (%) | SS 304L (%) | SS 316 (%) | SS 316L (%) |
|---|---|---|---|---|
| Chromium (Cr) | 18.0 – 20.0 | 18.0 – 20.0 | 16.0 – 18.0 | 16.0 – 18.0 |
| Nickel (Ni) | 8.0 – 10.5 | 8.0 – 12.0 | 10.0 – 14.0 | 10.0 – 14.0 |
| Carbon (C) | ≤ 0.08 | ≤ 0.03 | ≤ 0.08 | ≤ 0.03 |
| Manganese (Mn) | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 |
| Iron (Fe) | Balance | Balance | Balance | Balance |
| Molybdenum (Mo) | — | — | 2.0 – 3.0 | 2.0 – 3.0 |
Applications of Wing Nuts
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What are wing nuts typically used for?
Are wing nuts strong enough for structural applications?
Can I get wing nuts in plastic or stainless steel?
Do you provide bulk orders for OEM and export needs?
