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Flange Nuts
Flange nuts have a built-in washer-like flange that distributes pressure evenly over the part being secured. This design reduces the risk of damage to the material and provides a secure, vibration-resistant fastening.
- Integrated flange for even pressure distribution
- Reduces the need for a separate washer
- Provides a strong and secure hold
- Resistant to loosening from vibration
- Commonly used in automotive and industrial applications
Flange Nuts Specification Table
| Specification | Description |
|---|---|
| Flange Nuts Standard | EU, IFI, CSN, Italian, ASME, British BS, Indian IS, ISO, DIN, Polish PN, SAE |
| Flange Nuts Sizes | M4 to M100 |
| Flange Nuts Length | 3/8 to 8″ |
| Flange Nuts Materials | High Tensile, Carbon Steel, Stainless Steel, Inconel Fasteners, Incoloy Fasteners, Hastelloy Fasteners, Monel Fasteners, Silicon Bronze, Phosphor Bronze, Aluminium Bronze, Nickel, Brass, Copper, Copper Nickel, Nitronic, Nimonic, ASME, ASTM |
| Flange Nuts Coating | PTFE Coated Flange Nuts, Hot Dip Galvanized Flange Nuts, Yellow Zinc Plated Flange Nuts, Blue Zinc Plated Flange Nuts, Black Zinc Plated Flange Nuts, Zinc Cobalt Plated Flange Nuts, Aluminium Zinc Flake Coated Flange Nuts, Black Phosphate Flange Nuts, Zinc Plated Flange Nuts, Nickel Plated Flange Nuts |
| High Tensile Grades | 8.8 Flange Nuts, 10.9 Flange Nuts, 12.9 Flange Nuts, 14.9 Flange Nuts |
| Flange Nuts Forming | Hot Forged Flange Nuts & Cold Forged Flange Nuts |
Flange Nuts Materials / Grades
| Materials | Grades |
|---|---|
| Stainless Steel | ASTM / ASME SA 312 GR. TP 304 , 304L , 304H, 309S ,309H , 310S, 310H , 316 , 316TI , 316H , 316 LN , 317 , 317L , 321 , 321H , 347 , 347 H , 904L . |
| High Tensile | 8.8, 10.9, 12.9, 14.9 |
| Duplex Steel | UNS NO S 31803, S 32205, S 32550, S 32750, S 32760. |
| Carbon Steel | ASTM / ASME A 335 GRP 1, P 5, P 9, P 11, P 12, P 22, P 23, P 91 |
| Alloys Steel | ASTM / ASME A/SA 193 / 194 – B 6, B 7/ B 7M, B 16, 2, 2HM, 2H, GR 6, B 7, B 7M |
| Nickel Alloys | Nickel Alloys 200, Nickel Alloys 201 |
| Hastelloy | Hastelloy C-22, Hastelloy C-276, Hastelloy C-2000, Hastelloy C-4, Hastelloy X, Hastelloy B, Hastelloy N, Hastelloy G |
| Inconel | Inconel 600, Inconel 601, Inconel 625, Inconel 625LCF, Inconel 686, Inconel 718, Inconel 800, Inconel 825, Inconel X-750 , Inconel 690, Inconel 602, Inconel 617, Inconel 925, Inconel A-289, Inconel AL-6XN, AL-904L |
Flange Nuts Dimensions Chart:
| Diameter and Thread Pitch | Width S | Width E | Diameter Dc | Bearing Circle Dia., Dw | Edge Thickness C | Thickness M | Flange Top Fillet Radius R | |||
|---|---|---|---|---|---|---|---|---|---|---|
Max | Min | Max | Min | Max | Min | Min | Max | Min | Max | |
| M5 × 0.8 | 8.00 | 7.78 | 9.24 | 8.79 | 11.8 | 9.8 | 1.0 | 5.00 | 4.70 | 0.3 |
| M6 × 1 | 10.00 | 9.78 | 11.55 | 11.05 | 14.2 | 12.2 | 1.1 | 6.00 | 5.70 | 0.4 |
| M8 × 1.25 | 13.00 | 12.73 | 15.01 | 14.38 | 17.9 | 15.8 | 1.2 | 8.00 | 7.60 | 0.5 |
| M10 × 1.5 | 15.00 | 14.73 | 17.32 | 16.64 | 21.8 | 19.6 | 1.5 | 10.00 | 9.60 | 0.6 |
| M12 × 1.75 | 18.00 | 17.73 | 20.78 | 20.03 | 26.0 | 23.8 | 1.8 | 12.00 | 11.60 | 0.7 |
| M14 × 2 | 21.00 | 20.67 | 24.25 | 23.35 | 29.9 | 27.6 | 2.1 | 14.00 | 13.30 | 0.9 |
| M16 × 2 | 24.00 | 23.67 | 27.71 | 26.75 | 34.5 | 31.9 | 2.4 | 16.00 | 15.30 | 1.0 |
| M20 × 2.5 | 30.00 | 29.16 | 34.64 | 32.95 | 42.8 | 39.9 | 3.0 | 20.00 | 18.90 | 1.2 |
Flange Nut Applications:
- Automotive assemblies to reduce vibration and distribute load
- Construction projects requiring secure and even fastening
- Machinery and equipment where a washer is not required
- Heavy-duty industrial applications
- Electrical and electronic enclosures
- Applications in marine and offshore environments