Phanuphong Steel and Plates, a reputable manufacturer and supplier located in Bangkok, Thailand, specializes in providing top-notch Alloy Steel Gr 10.9 Fasteners. Renowned for their precision engineering, durability, and reliability, these fasteners are crafted to meet the rigorous demands of various industrial sectors. With a commitment to exceptional quality standards, Phanuphong Steel ensures that every product complies with international norms, delivering strength and a long service life to customers. Supported by state-of-the-art manufacturing facilities and expertise, the company offers Alloy Steel Gr 10.9 Fasteners in a variety of sizes and specifications to serve global markets and critical engineering applications.
Alloy Steel Gr 10.9 Fasteners are primarily made up of carbon, manganese, phosphorus, and sulfur, along with alloying elements like chromium and molybdenum that boost their strength and resistance to corrosion. These fasteners showcase impressive tensile strength, remarkable hardness, and high fatigue resistance, making them perfect for heavy-duty tasks. They maintain stability under stress, exhibit good yield strength, and guarantee reliable performance even in tough environments. Their mechanical properties ensure a long-lasting service life and resistance to wear, making them durable for high-pressure and high-stress industrial applications.
Standard :Â DIN EN ISO 4014 & 4017 DIN 931 / 933 & IS 1364 / IS 1363
Size :Â Dia M 20 to 100 mm / Inch 3/4″to 3.1/2″
Finish :Â Plain / Zinc plated / Hot dip galvanised
Types :Â Nuts, Bolts, Screws, Sockets, Studs, Screw, Hex Set Screw, Socket Screw, Cap Screw, Pan Head Screw, Socket Head Cap Screw, Washers, Spring Washers, Studs, Anchors
| Alloy Steel 10.9 | C | Mn | Si | P | S | Mo | Cr |
| 0.08-0.15 | 1.00 max | 1.00 max | 0.040 | 0.030 | 0.15-0.25 | 11.50-13.50 |
| Grades | Size Range | PS [MPa] | YS (min) [MPa] | TS (min) [MPa] | Hardness [Rockwell] |
| Class 10.9 | 5–100 | 830 | 940 | 1040 | C33–39 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Hexagon Bolts / Set Screws | Stud Bolts | Hexagon Nuts | Socket Capscrews |
|---|---|---|---|
DIN 931 | BS4882 | DIN 934 | DIN 912 |
DIN 933 | DIN 976 | BS 1768 | DIN 6912 |
BS 1768 | Â | BS 1769 | DIN 7984 |
UNI 5731 | Â | BS 1083 | ANSI B18.3 |
UNI 5739 | Â | BS 3692 | ISO 4762 |
ISO 4014 | Â | ISO 4032 | UNI 5931 |
ISO 4017 | Â | ISO 4033 | BS 2470 |
BS 1769 | Â | ANSI B18.2.2 | BS 4168 |
BS 3692 | Â | Â | Â |
ANSI B18.2.1 | Â | Â | Â |
Socket & Slotted Set Screws | Socket & Slotted Countersunk Screws | Studs | Washers |
DIN 913 | DIN 963 | DIN 938 | DIN 125 |
DIN 914 | DIN 7991 | DIN 939 | DIN 9021 |
DIN 915 | BS 4168 | DIN 2510 | BS 4320 |
DIN 916 | BS 1981 | BS 4439 | BS 3410 |
DIN 551 | BS 483 | BS 2693 | Â |
DIN 553 | BS 2470 | Â | Spring Washers |
DIN 438 | Â | Â | DIN 127 |
BS 4168 | Â | Â | BS 4464 |
 |  |  | BS 1802 |
Alloy Steel Gr 10.9 Fasteners find extensive use across industries that demand high strength and reliability, such as automotive, aerospace, heavy machinery, and construction. In the automotive field, they are perfect for engine components, suspension systems, and structural joints due to their ability to endure vibrations and dynamic loads. In construction, they play a crucial role in steel frameworks, bridges, and high-rise buildings, ensuring stability under stress. The aerospace and defense sectors favor them for critical components that require precision and durability. Additionally, they are widely utilized in energy, railways, and manufacturing industries for secure and long-lasting fastening solutions.
Phanuphong 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 Bangkok, Thailand.
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