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Super Duplex Steel Hex Nut Manufacturer

Hex Nut

Super Duplex Steel Hex Nut

ASTM F594 Super Duplex Steel Hex Nut

Hex Nut

Super Duplex Heavy Hex Nut

ASTM F594 Super Duplex Heavy Hex Nuts

Hex Nut

Super Duplex Steel Hex Lock Nuts

ASTM F594 Super Duplex Hex Lock Nuts

Hex Nut

Super Duplex Steel Hex Flange Nuts

ASTM F594 Super Duplex Steel Hex Flange Nuts

Hex Forge Inc. is a leading manufacturer and exporter of Super Duplex Steel Hex Nuts designed and manufactured to meet the most demanding requirements of our customers. Our Super Duplex Steel Hex Nuts are made of an alloy that combines high strength, corrosion resistance, and a wide range of temperature applications with exceptional affordability. The nuts feature superior creep and fatigue resistance, making them ideal for various industrial applications, including oil & gas production, marine environments, chemical processing, power generation, and more.

Our Super Duplex Steel Hex Nuts are precision machined for improved performance in low and high-temperature conditions. They also have greater tensile strength than other steel grades, which can be used in higher-stress applications. Also, the nut’s superior corrosion resistance provides better protection from exposure to harsh chemicals and water. Our Super Duplex Steel Hex Nuts are available in various styles and sizes to meet your specifications. We also offer custom-made nuts for more specialized applications.

All our products are rigorously tested to ensure they meet the highest quality, reliability, and performance standards. Whether you need standard or customized components, Hex Forge Inc. is here to help you find the perfect solution for all your needs! We understand that our customers need reliable, high-quality fastener components that can withstand demanding conditions. We are proud to offer Super Duplex Steel Hex Nuts as part of our selection. 

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These nuts provide superior performance in highly corrosive and cryogenic environments, making them ideal for many industrial applications. Our Super Duplex Steel Hex Nuts feature a unique composition that includes iron, chromium, molybdenum, and nickel for improved strength and corrosion resistance. This combination creates an alloy with twice the tensile strength of stainless steel and more excellent corrosion resistance than austenitic grades. The superior corrosion resistance even allows these hex nuts to be used in seawater due to their higher resistance to pitting and crevice corrosion.

Specification And Material Grade Of Super Duplex Steel Hex Nuts

Specification : ASTM F594

Size :

  • Cold Forming process: M2-M24
  • Hot Forging process: M24-M100, 1-1/2” Dia, up to 1100mm lg
  • CNC Machining for M100 / 4” Dia, up to 1500mm lg
  • Manufacturing M2, M3, M3.5, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M42, M45, M48 to M160 and Custom Metric Super Duplex Steel Hex Nuts

Hex Nuts Size Metric : Dia: M10 – M110 / Length: 12 – 1200MM

Hex Nuts Size Inch : Dia: 1/2″ – 4.0″ / Length: 1/2″ – 52″

Length : 3 to 200 mm

Standard : ISO, IS, ANSI, ASME, UNI, ASTM, DIN, JIS, IS, GB, BS, CSN, EU, IFI, PN, and all International Standards

Threads: METRIC, BSW, UNC, UNF, BSF or as required

DIN Standard : DIN 934, DIN 982, DIN 985, DIN 936, DIN 929, DIN 1587, DIN 439, DIN 315

UTS – Unified Thread Standard : UNC, UNF, NPT, UNS, UNEF, NPTF

ASME Standard :ASME B18.2.2 / ASME B18.16.6 / ASME B18.16.4 / ASME B18.2.2

Hex Nuts Forming : Hot Forged Hex Nuts & Cold Forged Hex Nuts

UTS – Unified Thread Standard : UNC, UNF, NPT, UNS, UNEF, NPTF

Certification : Dual Certified As per ASTM & ASME Codes

Hex Nut Drawing
Super Duplex Steel Hex Nuts

Super Duplex Steel Hex Nuts Grade

Various Types of Super Duplex Steel Hex Nuts

Hex Nut

Super Duplex Steel Hex Nut

Heavy Hex Nut Manufacturer

Super Duplex Steel Heavy Hex Nut

Flange Nut

Super Duplex Steel hEX Flange Nut

Hex Weld Nut

Super Duplex Steel Hex Weld Nut

Hex Coupling Nut

Super Duplex Steel Hex Coupling Nut

Hex Jam Nut

Super Duplex Steel Hex Jam Nut

We Manufacturer Super Duplex Steel Hex Nuts As Per International Standards & Specifications. SDSS Hex Nut Manufacturers In India, Custom Sizes Super Duplex Hex Jam Nuts, Hex Panel Nuts, Hex Weld Nuts Can Be Produced As Per Client Drawing.

Dimensional Standards
  • American Standard (ANSI/ASME/AWWA)
  • German Standard (DIN)
  • European Standard (EN)
  • Japanese Standard (JIS)
  • British Standard (BS)
  • MSS Standard (MSS-SP)
  • Petroleum Standard (API)
  • Russian Standard (GOST)
  • South African Standard (SABS / SANS)
Surface Coating
  • Hot Dipped Galvanizing
  • Phosphate
  • Teflon
  • PTFE Coated
  • Xylon
  • Zinc Phosphate
  • Manganese Phosphate
  • Zinc Electro Plating
  • ZAC (Zinc Aluminum Flake Coating)

Super Duplex Steel Hex Nut Dimensions Chart

Metric Hex Nut Dimensions

DIA M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 M39 M42 M45 M48 M52
Pitch 0.7 0.8 1 1.25 1.5 1.75 2 2 2.5 2.5 2.5 3 3 3.5 3.5 4 4 4.5 4.5 5 5
Across Flat (S) Max Min 7 8 10 13 16 18 21 24 27 30 34 36 41 46 50 55 60 65 70 75 80
6.78 7.78 9.78 12.73 15.73 17.73 20.67 23.67 26.16 29.16 33 35 40 45 49 53.8 58.8 63.1 68.1 73.1 78.1
Thickness (M) MaxMin 3.2 4.7 5.2 6.8 8.4 10.8 12.8 14.8 15.8 18 19.4 21.5 23.8 25.6 28.7 31 33.4 34 36 38 42
2.9 4.4 4.9 6.44 8.04 10.37 12.1 14.1 15.1 16.9 18.1 20.2 22.5 24.3 27.4 29.4 31.8 32.4 34.4 36.4 40.4
Across corners (E) Min 7.66 8.79 11.05 14.38 17.77 20.03 23.35 26.75 29.56 32.95 37.29 39.55 45.2 50.85 55.37 60.79 66.44 71.3 76.95 82.6 88.25
Minor Dia at thread (min) 3.242 4.134 4.917 6.647 8.376 10.106 11.835 13.835 15.294 17.294 19.294 20.752 23.752 26.211 29.211 31.67 34.67 37.129 40.129 42.587 46.587
Minor Dia at thread (max) 3.422 4.334 5.153 6.912 8.676 10.441 12.210 14.210 15.744 17.774 19.774 21.252 24.252 26.771 29.771 32.27 35.27 37.799 40.799 43.297 47.297
**All measurements in millimeters**
Hex Nuts In mm Threads To IS 6623-1985 GRADES 8S
All dimensions in mm
DIA M16 M20 M22 M24 M27 M30 M36
Pitch 2 2.5 2.5 3 3 3.5 4
Head Across Flat (B) Min 26.16 33 35 40 45 49 58.8
Head Across Flat (B) Max 27 34 36 41 46 50 60
Height (H) Min Max 16.4 19.4 22.3 22.9 26.3 29.1 35
17.1 20.7 23.6 24.2 27.6 30.7 36.6
Across corners C min 29.56 37.29 39.55 45.20 50.85 55.37 66.44
Minor Dia at thread (min) 14.235 17.694 19.694 21.202 24.252 26.761 32.270
Minor Dia at thread (max) 14.610 18.144 20.144 21.702 24.752 27.321 32.870

Super Duplex Steel Heavy Hex Nut Dimensions

Nominal Width Across Flats (F) Width Across Corners (C) Heavy Hex Nut Thickness (H)
Size Basic Max Min Max Min Basic Max Min
1  1 5/8  1.625  1.575  1.876  1.796  63/64  1.012  0.956
1 1/2  2 3/8  2.375  2.300  2.742  2.622  1 15/32  1.505  1.433
1 1/4  2  2.000  1.938  2.309  2.209  1 7/32  1.251  1.187
1 1/8  1 13/16  1.812  1.756  2.093  2.002  1 7/64  1.139  1.079
1 3/4  2 3/4  2.750  2.662  3.175  3.035  1 23/32  1.759  1.679
1 3/8  2 3/16  2.188  2.119  2.526  2.416  1 11/32  1.378  1.310
1 5/8  2 9/16  2.562  2.481  2.959  2.828  1 19/32  1.632  1.556
1 7/8  2 15/16  2.938  2.844  3.392  3.242  1 27/32  1.886  1.802
1/2  7/8  0.875  0.850  1.010  0.969  31/64  0.504  0.464
1/4  1/2  0.500  0.488  0.577  0.556  15/64  0.250  0.218
2  3 1/8  3.125  3.025  3.608  3.449  1 31/32  2.013  1.925
2 1/2  3 7/8  3.875  3.750  4.474  4.275  2 29/64  2.505  2.401
2 1/4  3 1/2  3.500  3.388  4.041  3.862  2 13/64  2.251  2.155
2 3/4  4 1/4  4.250  4.112  4.907  4.688  2 45/64  2.759  2.647
3  4 5/8  4.625  4.475  5.340  5.102  2 61/64  3.013  2.893
3 1/2  5 3/8  5.375  5.200  6.207  5.928  3 7/16  3.506  3.370
3 1/4  5  5.000  4.838  5.774  5.515  3 3/16  3.252  3.124
3 3/4  5 3/4  5.750  5.562  6.640  6.341  3 11/16  3.760  3.616
3/4  1 1/4  1.250  1.212  1.443  1.382  47/64  0.758  0.710
3/8  11/16  0.688  0.669  0.794  0.763  23/64  0.377  0.341
4  6 1/8  6.125  5.925  7.073  6.755  3 15/16  4.014  3.862
5/16  9/16  0.562  0.546  0.650  0.622  19/64  0.314  0.280
5/8  1 1/16  1.062  1.031  1.227  1.175  39/64  0.631  0.587
7/16  3/4  0.750  0.728  0.866  0.830  27/64  0.441  0.403
7/8  1 7/16  1.438  1.394  1.660  1.589  55/64  0.885  0.833
9/16  15/16  0.938  0.909  1.083  1.037  35/64  0.568  0.526

UNC Heavy Hex Nut Dimensions

UNC Nut N/B Max Across Corners Min Across Corners Max Thickness Min Thickness Max Across Flats Max Across Flats
1  47.7  45.6  25.7  24.3  41.3  40
1 1/2  69.6  66.6  38.2  36.4  60.3  58.4
1 1/4  58.6  56.1  31.8  30.1  50.8  49.2
1 1/8  53.2  50.8  28.9  27.4  46  44.6
1 3/4  80.6  77.1  44.7  42.6  69.9  67.6
1 3/8  64.2  61.4  35  33.3  55.6  53.8
1 5/8  75.2  71.8  41.5  39.5  65.1  63
1 7/8  86.2  82.3  47.9  45.8  74.6  72.2
1/2  25.6  24.6  12.8  11.8  22.2  21.6
2  91.6  87.6  51.1  48.9  79.4  76.8
2 1/2  113.6  108.6  63.6  61  98.4  95.2
2 1/4  102.6  98.1  57.2  54.7  88.9  86.1
2 3/4  124.6  119.1  70.1  67.2  108  104.4
3  135.6  129.6  76.5  73.5  117.5  113.7
3/4  36.7  35.1  19.3  18  31.8  30.8
3/8  20.2  19.4  9.6  8.7  17.5  17
5/8  31.2  29.8  16  14.9  27  26.2
7/16  22  21.1  11.2  10.2  19  18.5
7/8  42.2  40.4  22.5  21.2  36.5  35.4
9/16  27.5  26.3  14.4  13.4  23.8  23.1

ISO Heavy Hex Nut Dimensions

ISO Nut NB Across Corners MAX Thickness MIN Thickness MAX Across Flats MIN Across Flats
M 8 14.38 6.8 6.44 13 12.73
M 10 17.77 8.4 8.04 16 15.73
M 12 20.03 10.8 10.37 18 17.73
M 14 23.35 12.8 12.1 21 20.67
M 16 26.75 14.8 14.1 24 23.67
M 18 29.56 15.8 15.1 27 26.16
M 20 32.95 18 16.9 30 29.16
M 22 37.29 19.4 18.1 34 33
M 24 39.55 21.5 20.2 36 35
M 27 45.2 23.8 22.5 41 40
M 30 50.85 26.6 24.3 46 45
M 33 55.37 28.7 27.4 50 49
M 36 60.79 31 29.4 55 53.8
M 39 66.44 33.4 31.8 60 58.8
M 42 71.3 34 32.4 65 63.1
M 45 76.95 36 34.4 70 68.1
M 48 82.6 38 39.4 75 73.1
M 52 88.25 42 40.4 80 78.1
M 56 93.56 45 43.4 85 82.8
M 60 99.21 48 46.4 90 87.8
M 64 104.86 51 49.1 95 92.8
M 68 110.51 54 52.1 100 97.8
M 72 x 6 116.16 58 56.1 105 102.8
M 76 x 6 121.81 61 59.1 110 107.8
M 80 x 6 127.46 64 62.1 115 112.8

Weight Chart Of Super Duplex Steel Hex Nuts

Size Hex Finished Nut Heavy Hex Nut Square Nut Hex Finished Jam Nut
¼” 0.007 0.013
3/8” 0.029 0.031 0.040
½” 0.038 0.065 0.057 0.027
5/8” 0.073 0.119 0.049 0.108
¾” 0.119 0.193 0.077 0.154
7/8” 0.190 0.297 0.120 0.245
1” 0.283 0.425 0.177 0.363
1 1/8” 0.403 0.592 0.247 0.525
1 ¼” 0.543 0.786 0.361 0.706
1 3/8” 0.730 1.020 0.479 0.945
1 ½” 0.943 1.310 0.609 1.220
1 5/8” 1.620 0.916
1 ¾” 1.510 2.040 1.000
1 7/8” 2.410 1.340
2” 2.240 2.990 1.400
2 1/8” 3.350
2 ¼” 4.200
2 ½” 5.640
2 ¾” 7.390
3” 9.500
3 ¼” 11.940
3 ½” 15.260
3 ¾” 18.120
4” 21.830

We are One Of The Most Trusted Supplier Of Super Duplex Steel Hex Nut in India. For final SDSS Heavy Hex Nut Price List

Please Call on +91 80809 86211 or drop an E-Mail : [email protected]

Ready Stock Of Super Duplex Steel hex Nuts

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  • SDSS Slotted Hex Nuts Stockist
  • ASTM F594 Super Duplex Steel Heavy Hex Nut
  • Super Duplex Steel Hex Cup Nuts
  • Super Duplex Hexagonal Insert Nut Manufacturer

We Export Super Duplex Steel Hex Nuts Across the Globe

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Hex Forge Inc. is a leading manufacturer, supplier, stockist, and exporter of fasteners, flanges and Tubes in a variety of types.
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