Ahmer Steel, a well-respected manufacturer and supplier located in Manama, Bahrain, specializes in top-notch Alloy Steel Gr 12.9 Fasteners that are built for extreme strength and high-performance in industrial settings. These fasteners are crafted for heavy-duty environments where exceptional mechanical strength, precision, and reliability are absolutely essential. Utilizing advanced heat-treatment techniques and rigorous dimensional control, Ahmer Steel guarantees that each Grade 12.9 fastener provides remarkable tensile capacity, wear resistance, and long-lasting durability. Their ability to endure intense loads, vibrations, and challenging operational conditions makes them perfect for automotive applications, machinery, high-stress structural assemblies, and critical engineering systems.
Alloy Steel Gr 12.9 Fasteners are made from high-quality alloy steel that includes carbon, manganese, chromium, and molybdenum, and they undergo heat treatment through quenching and tempering. These fasteners boast incredibly high tensile and yield strength, outstanding hardness, and excellent fatigue resistance. Their mechanical properties ensure reliable performance even under heavy shock loads, dynamic stresses, and high-pressure situations. The alloy composition offers strong wear resistance and dimensional stability while preserving structural integrity. These features make Grade 12.9 fasteners perfect for demanding industrial applications that require unmatched strength and long-lasting reliability.
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 find extensive use in high-stress industrial systems, precision machinery, automotive assemblies, heavy equipment, and structural engineering projects. They are particularly suited for critical joints that face extreme loads, impacts, vibrations, and ongoing mechanical stress. Common applications include engine components, gearboxes, machine tools, hydraulic systems, high-strength structural connections, heavy-duty equipment frames, and robotic machinery. Their exceptional tensile strength and durability make them a go-to choice for industries that demand reliability and performance under pressure.
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Ahmer 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 Manama, Bahrain.
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