Chetan Steel, headquartered in Delhi, is a trusted manufacturer and supplier of premium industrial steel products. With years of experience and a strong focus on quality, the company delivers components that combine precision, durability, and high performance. Among its key offerings are Alloy Steel Gr 12.9 Fasteners, engineered to withstand extreme industrial conditions while ensuring long-lasting reliability. Each fastener is manufactured with meticulous attention to detail and strict quality control, providing safety and performance in critical applications. Chetan Steel’s dedication to excellence and customer satisfaction has made it a preferred choice for businesses across India seeking robust and dependable fastening solutions.
Alloy Steel Gr 12.9 Fasteners are made from high-quality alloy steel, carefully enriched with carbon, chromium, and other strengthening elements, providing exceptional hardness, tensile strength, and resistance to wear and corrosion. These fasteners exhibit superior mechanical properties, including high yield strength, toughness, and the ability to withstand extreme loads and temperature variations. Precisely engineered and heat-treated, they maintain dimensional stability and structural integrity under demanding industrial conditions. Their optimized metallurgical composition ensures consistent and reliable performance, making them ideal for critical applications requiring secure, high-strength, and long-lasting fastening solutions.
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
| Grades | Size Range | PS [MPa] | YS (min) [MPa] | TS (min) [MPa] | Hardness [Rockwell] |
| Class 12.9 | Under M16 | 580 | 640 | 800 | |
| 17-72 | 600 | 660 | 830 | C23–34 |
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 12.9 Fasteners are widely used in industries that demand exceptional strength, reliability, and safety. They are commonly applied in automotive assembly, heavy machinery, construction, industrial piping systems, and structural frameworks. These fasteners are designed to endure extreme loads, high temperatures, and challenging environments, ensuring secure and leak-proof connections. Trusted by engineers and technicians for both new installations and maintenance projects, Alloy Steel Gr 12.9 Fasteners provide superior performance and longevity. Their robust design and high mechanical strength make them an ideal choice for critical industrial operations where dependable and durable fastening solutions are essential.
Chetan 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 Delhi, India.
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