Naing Steel stands as a leading manufacturer and supplier in Naypyidaw, dedicated to providing the robust backbone that Myanmar’s growing industries require. We specialize in the production of Alloy Steel Grade 12.9 fasteners, engineering each bolt and screw to meet the most rigorous international standards. Our commitment lies in delivering not just a product, but a promise of unwavering strength and reliability, ensuring your critical projects are built on a foundation of trust and exceptional performance, right here from the heart of the nation.
Crafted from a specialized alloy steel, Grade 12.9 fasteners achieve their extraordinary strength through a precise heat treatment process. This results in a minimum tensile strength of 1,220 MPa, meaning they can withstand immense stretching forces before failure. They also offer a remarkable yield point and high hardness, providing exceptional resistance to deformation under heavy loads. This unique combination of properties makes them significantly stronger than standard high-tensile fasteners, offering a superior margin of safety.
Standard :Â 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 :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 |
The exceptional strength of Grade 12.9 fasteners makes them indispensable for situations where failure is not an option. You will find them securing critical components in heavy machinery, high-performance automotive assemblies, and the structural frames of large-scale industrial equipment. They are essential in construction projects requiring immense clamping force, and in applications subjected to severe vibration or dynamic loads. Essentially, wherever there is a need for the ultimate in reliability and safety, these fasteners provide the necessary peace of mind for engineers and builders.
Naing 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 Naypyidaw, Myanmar.
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