Marzouk Steel, located in Tunis, Tunisia, has built a solid reputation as a reliable manufacturer and supplier of high-quality carbon steel screws. Renowned for their commitment to quality, precision, and durability, they cater to a diverse array of industries, including industrial, commercial, and construction sectors. By employing cutting-edge production methods and strict quality control measures, Marzouk Steel guarantees that every screw adheres to international standards for strength and reliability. With a wealth of experience in various sizes, threads, and specifications, they offer tailored solutions that meet the specific needs of engineers, contractors, and manufacturers. Marzouk Steel combines technical expertise with years of industry experience to provide cost-effective, robust, and long-lasting carbon steel screws.
Carbon steel screws are primarily composed of iron with a carefully controlled carbon content, usually ranging from 0.15% to 0.45%. This composition strikes a perfect balance between strength, hardness, and flexibility. The addition of small amounts of manganese, silicon, and other alloying elements boosts their durability, wear resistance, and machinability. From a mechanical standpoint, carbon steel screws showcase impressive tensile strength, excellent shear resistance, and dependable performance under load. Their capacity to endure repeated stress, along with long-lasting durability and ease of threading, makes them a top choice for applications that demand secure and reliable fastening solutions.
Specification :Â ASTM F568 / ASME SF568
Dimension :Â DIN, ISO, ASTM, JIS, BS, GB, IS and all International Standards
Size Range :Â M3 – M56 | 3/6″ to 2″ | Custom Sizes
Length :Â 3 mm to 200 mm
Type : Hex Head Cap Screws, Socket Set Screws, Anchor Screws, Blind Rivet, Socket Head Screws, Concrete Screws, Shoulder Screws, Panel Screws, Threaded Screws, Machine Screws etc.
| 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.
Marzouk Steel is a trustworthy manufacturer and supplier of quality Carbon Steel Screw in Tunis, Tunisia. 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 Screw needs!
| Â Screw Nom. Size Thread Pitch | Body Diameter D | Head Diameter A | Head Height H | Chamfer or Radius S | Hexagon Socket Size J | Spline Socket Sizea M | Key Engagement T | Transition Dia. B | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Max | Min | Max | Min | Max | Min | Max | Nom. | Nom. | Min | Max | |
| M1.6 × 0.35 | 1.60 | 1.46 | 3.00 | 2.87 | 1.60 | 1.52 | 0.16 | 1.5 | 1.829 | 0.80 | 2.0 |
| M2 × 0.4 | 2.00 | 1.86 | 3.80 | 3.65 | 2.00 | 1.91 | 0.20 | 1.5 | 1.829 | 1.00 | 2.6 |
| M2.5 × 0.45 | 2.50 | 2.36 | 4.50 | 4.33 | 2.50 | 2.40 | 0.25 | 2.0 | 2.438 | 1.25 | 3.1 |
| M3 × 0.5 | 3.00 | 2.86 | 5.50 | 5.32 | 3.00 | 2.89 | 0.30 | 2.5 | 2.819 | 1.50 | 3.6 |
| M4 × 0.7 | 4.00 | 3.82 | 7.00 | 6.80 | 4.00 | 3.88 | 0.40 | 3.0 | 3.378 | 2.00 | 4.7 |
| M5 × 0.8 | 5.00 | 4.82 | 8.50 | 8.27 | 5.00 | 4.86 | 0.50 | 4.0 | 4.648 | 2.50 | 5.7 |
| M6 × 1 | 6.00 | 5.82 | 10.00 | 9.74 | 6.00 | 5.85 | 0.60 | 5.0 | 5.486 | 3.00 | 6.8 |
| M8 × 1.25 | 8.00 | 7.78 | 13.00 | 12.70 | 8.00 | 7.83 | 0.80 | 6.0 | 7.391 | 4.00 | 9.2 |
| M10 × 1.5 | 10.00 | 9.78 | 16.00 | 15.67 | 10.00 | 9.81 | 1.00 | 8.0 | … | 5.00 | 11.2 |
| M12 × 1.75 | 12.00 | 11.73 | 18.00 | 17.63 | 12.00 | 11.79 | 1.20 | 10.0 | … | 6.00 | 14.2 |
| M14 × 2b | 14.00 | 13.73 | 21.00 | 20.60 | 14.00 | 13.77 | 1.40 | 12.0 | … | 7.00 | 16.2 |
| M16 × 2 | 16.00 | 15.73 | 24.00 | 23.58 | 16.00 | 15.76 | 1.60 | 14.0 | … | 8.00 | 18.2 |
| M20 × 2.5 | 20.00 | 19.67 | 30.00 | 29.53 | 20.00 | 19.73 | 2.00 | 17.0 | … | 10.00 | 22.4 |
| M24 × 3 | 24.00 | 23.67 | 36.00 | 35.48 | 24.00 | 23.70 | 2.40 | 19.0 | … | 12.00 | 26.4 |
| M30 × 3.5 | 30.00 | 29.67 | 45.00 | 44.42 | 30.00 | 29.67 | 3.00 | 22.0 | … | 15.00 | 33.4 |
| M36 × 4 | 36.00 | 35.61 | 54.00 | 53.37 | 36.00 | 35.64 | 3.60 | 27.0 | … | 18.00 | 39.4 |
| M42 × 4.5 | 42.00 | 41.61 | 63.00 | 62.31 | 42.00 | 41.61 | 4.20 | 32.0 | … | 21.00 | 45.6 |
| M48 × 5 | 48.00 | 47.61 | 72.00 | 71.27 | 48.00 | 47.58 | 4.80 | 36.0 | … | 24.00 | 52.6 |
| Â Screw Size | Body Dia | Hex Key Size | Head Height | Head Dia | Maximum Thread Length | Minimum Thread Length |
|---|---|---|---|---|---|---|
| No. 0 | 0.06 | 0.05 | 0.06 | 0.096 | 5/8 | 3/8 |
| No. 1 | 0.073 | 1/16 | 0.073 | 0.118 | 7/8 | 3/8 |
| No. 2 | 0.086 | 5/64 | 0.086 | 0.14 | 7/8 | 1/2 |
| No. 3 | 0.099 | 5/64 | 0.099 | 0.161 | 7/8 | 1/2 |
| No. 4 | 0.112 | 3/32 | 0.112 | 0.183 | 11/8 | 11/16 |
| No. 5 | 0.125 | 3/32 | 0.125 | 0.205 | 1 | 11/16 |
| No. 6 | 0.138 | 7/64 | 0.138 | 0.226 | 11/8 | 11/16 |
| No. 8 | 0.164 | 9/64 | 0.164 | 0.27 | 11/4 | 3/4 |
| No. 10 | 0.19 | 5/32 | 0.19 | 0.312 | 13/8 | 15/16 |
| No. 12 | 0.216 | 5/32 | 0.216 | 0.345 | 11/4 | 15/16 |
| 1/4 | 0.250 | 3/16 | 1/4 | 3/8 | 11/2 | 15/16 |
| 5/16 | 0.3125 | 1/4 | 5/16 | 15/32 | 1-3/4 | 1-1/16 |
| 3/8 | 0.375 | 5/16 | 3/8 | 9/16 | 2 | 1-3/16 |
| 7/16 | 0.438 | 3/8 | 7/16 | 21/32 | 2-1/4 | 13/16 |
| 1/2 | 0.500 | 3/8 | 1/2 | 3/4 | 2-1/2 | 1-3/8 |
| 9/16 | 0.5625 | 7/16 | 9/16 | 27/32 | 2-7/16 | 1-5/8 |
| 5/8 | 0.625 | 1/2 | 5/8 | 15/16 | 3 | 1-5/8 |
| 3/4 | 0.750 | 5/8 | 3/4 | 11/8 | 3-1/2 | 1-7/8 |
| 7/8 | 0.875 | 3/4 | 7/8 | 15/16 | 3-3/4 | 2-1/16 |
| 1 | 1.000 | 3/4 | 1 | 11/2 | 4-1/2 | 2-1/4 |
| 1-1/8 | 1.125 | 7/8 | 1-1/8 | 111/16 | 4-21/32 | 2-13/16 |
| 1-1/4 | 1.250 | 7/8 | 1-1/4 | 17/8 | 5-3/32 | 3-1/8 |
| 1-1/2 | 1.500 | 1 | 1-1/2 | 21/4 | 6-5/64 | 3-3/4 |
| 1-3/4 | 1.750 | 11/4 | 1-3/4 | 25/8 | 7-1/8 | 4-3/8 |
| 2 | 2.000 | 11/2 | 2 | 3 | 8-7/64 | 5 |
These screws are widely utilized across various industries due to their strength, reliability, and versatility. In construction, they play a crucial role in securing structural components, machinery, and equipment. In manufacturing, they are essential for assembling mechanical parts, tools, and industrial machinery. Sectors like automotive, electronics, and furniture depend on carbon steel screws for precise and durable fastening of components. Their ability to resist wear, maintain tight connections, and perform well under different loads makes them suitable for both heavy-duty and everyday applications. Carbon steel screws offer trustworthy fastening solutions for a wide range of industrial and commercial needs.
Marzouk 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 Tunis, Tunisia.
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