Aatir Steel, a top-notch manufacturer and supplier based in Cairo, Egypt, specializes in high-quality Carbon Steel Nuts that are built for strength, durability, and precision. Crafted to meet international standards, these nuts offer reliable fastening solutions for a wide range of industrial and mechanical applications. Made from premium-grade carbon steel, Aatir Steel’s nuts guarantee excellent dimensional accuracy, corrosion resistance, and outstanding mechanical performance. They find extensive use in engineering, construction, automotive, and manufacturing sectors, providing secure, leak-proof connections. With a commitment to quality, durability, and performance, Aatir Steel’s Carbon Steel Nuts are trusted for long-lasting and dependable operation in critical applications.
Carbon Steel Nuts are mainly made of iron, with carbon content between 0.20% and 0.60%, along with manganese (0.60–1.65%), silicon (0.15–0.35%), and small amounts of sulfur and phosphorus. This blend strikes a perfect balance of hardness, strength, and ductility. The nuts boast a tensile strength of 420–620 MPa and a yield strength of 250–350 MPa, with good elongation (15–25%). They also provide excellent machinability and wear resistance, making them ideal for high-stress fastening applications. Heat treatment further enhances their mechanical properties, ensuring they perform reliably under various industrial conditions.
Specification : ASTM F568 / ASME SF568
Dimension : DIN, ISO, ASTM, JIS, BS, GB, IS and all International Standards
Size Range : M3 – M56 | 3/6″ to 2″ | Custom Sizes
Length : 3 mm to 200 mm
Type : Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts.
| Grade | C | P | S | B |
| Carbon Steel 10.9 | 0.20-0.55 | 0.025 | 0.025 | 0.003 |
| Carbon Steel 12.9 | 0.28-0.5 | 0.025 | 0.025 | 0.003 |
| Element | Nominal thread diameter size range [mm] | Proof strength [MPa] | Yield strength (min) [MPa] | Tensile strength (min) [MPa] | Hardness [Rockwell] |
| Carbon Steel 10.9 | 5–100 | 830 | 940 | 1040 | C32–39 |
| Carbon Steel 12.9 | 1.6–100 | 970 | 1100 | 1220 | C39–44 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Jaxon Steel is a trustworthy manufacturer and supplier of quality Carbon Steel Nut in Cairo, Egypt. We specialize in top-grade steel products like Carbon Steel, Alloy Steel, Mild Steel, and Galvanized Steel, with the main focus being on Carbon Steel Sheets and Plates. Our vast inventory also includes Pipes, Tubes, Flanges, Forged Fittings, and Bars. Committed to fast delivery and excellent customer service, we use only the finest raw materials to deliver excellent strength, durability, and performance for high-demand industrial uses. Contact us today for all your Carbon Steel Nut needs!
| Hex 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 |
| Nominal or Basic Major Diameter of Nut Thread | Nuts Width Across Flats (F) | Width Across Corners (G) | Thickness of Hex Nuts (H) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Basic | Max | Min | Max | Min | Basic | Max | Min | ||
| 1/4 | 0.2500 | 7/16 | .438 | .428 | .505 | .488 | 7/32 | 0.226 | 0.212 |
| 5/16 | 0.3125 | 1/2 | .500 | .489 | .577 | .557 | 17/64 | 0.273 | 0.258 |
| 3/8 | 0.3750 | 9/16 | .562 | .551 | .650 | .628 | 21/64 | 0.337 | 0.320 |
| 7/16 | 0.4375 | 11/16 | .688 | .675 | .794 | .768 | 3/8 | 0.385 | 0.365 |
| 1/2 | 0.5000 | 3/4 | .750 | .736 | .866 | .840 | 7/16 | 0.448 | 0.427 |
| 9/16 | 0.5625 | 7/8 | .875 | .861 | 1.010 | .982 | 31/64 | 0.496 | 0.473 |
| 5/8 | 0.6250 | 15/16 | .938 | .922 | 1.083 | 1.051 | 35/64 | 0.559 | 0.535 |
| 3/4 | 0.7500 | 1-1/8 | 1.125 | 1.088 | 1.299 | 1.240 | 41/64 | 0.665 | 0.617 |
| 7/8 | 0.8750 | 1-5/16 | 1.312 | 1.269 | 1.516 | 1.447 | 3/4 | 0.776 | 0.724 |
| 1 | 1.0000 | 1-1/2 | 1.500 | 1.450 | 1.732 | 1.653 | 55/64 | 0.887 | 0.831 |
| 1-1/8 | 1.1250 | 1-11/16 | 1.688 | 1.631 | 1.949 | 1.859 | 31/32 | 0.999 | 0.939 |
| 1-1/4 | 1.2500 | 1-7/8 | 1.875 | 1.812 | 2.165 | 2.066 | 1-1/16 | 1.094 | 1.030 |
| 1-3/8 | 1.3750 | 2-1/16 | 2.062 | 1.994 | 2.382 | 2.273 | 1-11/64 | 1.206 | 1.138 |
| 1-1/2 | 1.5000 | 2-1/4 | 2.250 | 2.175 | 2.598 | 2.480 | 1-9/32 | 1.317 | 1.245 |
| 1-5/8 | 1.6250 | 2-7/16 | 2.438 | 2.356 | 2.815 | 2.686 | 1-25/64 | 1.429 | 1.353 |
| 1-3/4 | 1.7500 | 2-5/8 | 2.625 | 2.538 | 3.031 | 2.893 | 1-1/2 | 1.540 | 1.460 |
| 2 | 2.000 | 3 | 3.000 | 2.900 | 3.464 | 3.306 | 1-23/32 | 1.763 | 1.675 |
| 2-1/4 | 2.2500 | 3-3/8 | 3.375 | 3.263 | 3.897 | 3.719 | 1-15/16 | 1.986 | 1.890 |
| 2-1/2 | 2.5000 | 3-3/4 | 3.750 | 3.625 | 4.330 | 4.133 | 2-5/32 | 2.209 | 2.105 |
| 2-3/4 | 2.7500 | 4-1/8 | 4.125 | 3.988 | 4.763 | 4.456 | 2-3/8 | 2.431 | 2.319 |
| 3 | 3.000 | 4-1/2 | 4.500 | 4.350 | 5.196 | 4.959 | 2-19/32 | 2.654 | 2.534 |
Aatir Steel’s Carbon Steel Nuts are extensively utilized for fastening, securing, and assembling components across various industries. They are perfect for construction projects, automotive assemblies, heavy machinery, and industrial equipment where strong and secure connections are crucial. These nuts are often used alongside bolts, studs, and screws in structural frameworks, pipelines, engines, and machinery. Their durability, precise dimensions, and resistance to wear and deformation make them well-suited for high-pressure and high-vibration environments.
Aatir Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Cairo, Egypt.
Copyright 2025 Aatir Steel. All rights reserved