Aatir Steel, a prominent manufacturer and supplier located in Cairo, Egypt, is all about top-notch Alloy Steel Gr 12.9 Fasteners. These fasteners are designed to deliver outstanding strength, durability, and reliability, especially in tough industrial settings. With a reputation for precision manufacturing and a commitment to international standards, Aatir Steel guarantees that every Gr 12.9 Fastener performs consistently, even under high stress, extreme temperatures, and heavy loads. They’re perfect for critical applications in industries like automotive, oil and gas, petrochemicals, and heavy machinery, where secure fastening and mechanical integrity are a must. Thanks to their focus on quality and long-lasting performance, Aatir Steel’s Gr 12.9 Fasteners have earned the trust of customers across Egypt and beyond.
These Alloy Steel Gr 12.9 Fasteners are made from a blend of carbon, chromium, and molybdenum, providing an impressive mix of high tensile strength, hardness, and toughness. They boast excellent yield strength, fatigue resistance, and corrosion resistance, making them ideal for heavy-duty and high-stress fastening tasks. The precision heat treatment they undergo enhances their mechanical properties, dimensional stability, and wear resistance, ensuring they perform reliably in demanding industrial environments.
Standard : DIN EN ISO 4014 & 4017 DIN 931 / 933 & IS 1364 / IS 1363
Size : Dia M 20 to 100 mm / Inch 3/4″to 3.1/2″
Finish : Plain / Zinc plated / Hot dip galvanised
Types : 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 | BS 1769 | DIN 7984 | |
UNI 5731 | BS 1083 | ANSI B18.3 | |
UNI 5739 | BS 3692 | ISO 4762 | |
ISO 4014 | ISO 4032 | UNI 5931 | |
ISO 4017 | ISO 4033 | BS 2470 | |
BS 1769 | ANSI B18.2.2 | BS 4168 | |
BS 3692 | |||
ANSI B18.2.1 | |||
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 | |
DIN 553 | BS 2470 | Spring Washers | |
DIN 438 | DIN 127 | ||
BS 4168 | BS 4464 | ||
BS 1802 |
You’ll find Alloy Steel Gr 12.9 Fasteners widely used in assembling automotive components, heavy machinery, industrial equipment, and construction projects that require strong, durable fasteners. Their exceptional mechanical properties make them perfect for applications in oil and gas, petrochemical plants, power generation, and industrial machinery, where resistance to wear, stress, and thermal fluctuations is crucial. Aatir Steel’s Gr 12.9 Fasteners deliver dependable performance, operational safety, and long-term reliability in even the most challenging industrial applications.
Aatir 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 Cairo, Egypt.
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