Esha Steel stands out as a top manufacturer and supplier of Alloy Steel Gr 10.9 Fasteners in Kolkata, recognized for delivering high-strength fastening solutions that adhere to strict global standards. With a keen emphasis on precision engineering, quality assurance, and customer satisfaction, the company provides fasteners that consistently perform well in heavy-duty and high-stress environments. Thanks to Esha Steel’s cutting-edge manufacturing facilities and thorough testing processes, their products boast durability, consistency, and a long service life. Catering to sectors like automotive, construction, heavy machinery, and engineering, Esha Steel has built a solid reputation for offering robust Alloy Steel Gr 10.9 Fasteners that are perfect for demanding industrial applications.
These fasteners are crafted from medium carbon alloy steel, enhanced with chromium, molybdenum, and manganese, and are heat-treated through quenching and tempering. As a result, they showcase impressive tensile and yield strength, remarkable hardness, and outstanding fatigue resistance. Their mechanical properties also include excellent wear resistance and the capability to endure dynamic loads and vibrations. With reliable performance under high stress, these fasteners are ideal for situations that demand strong, durable, and dependable fastening components in tough operational conditions.
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 in industries that require high-strength, high-performance fastening solutions. In the automotive sector, they are essential for engine assemblies, chassis components, suspension systems, and drivetrain applications, thanks to their ability to withstand extreme forces. In construction, they play a crucial role in steel structures, heavy frameworks, and load-bearing joints. The engineering and manufacturing sectors depend on these fasteners for machinery assembly, equipment fabrication, and high-stress mechanical connections. They are also utilized in mining, transportation, industrial machinery, and heavy equipment, where durability, vibration resistance, and long-term reliability are paramount.
Esha 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 Kolkata India.
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