Thabiso Steel, located in Cape Town, South Africa, stands out as a leading manufacturer and supplier of high-strength alloy steel products. Their Alloy Steel Gr 12.9 Fasteners are designed for peak performance, delivering remarkable tensile strength and durability for even the toughest industrial applications. Renowned for their precision and quality, Thabiso Steel provides fasteners that adhere to strict standards, offering reliable solutions for South Africa’s manufacturing, construction, and heavy engineering sectors.
These Alloy Steel Gr 12.9 Fasteners are crafted from a meticulously controlled alloy blend that includes carbon, manganese, chromium, and molybdenum. They feature an impressive tensile strength of about 1,200 MPa and a yield strength of roughly 1,080 MPa, striking a perfect balance between superior hardness and excellent toughness. Their mechanical properties guarantee exceptional resistance to fatigue, wear, and deformation, making them perfect for applications where strength and safety are paramount.
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 |
Commonly found in the automotive, aerospace, heavy machinery, and structural engineering industries, Alloy Steel Gr 12.9 Fasteners are crucial for securing components that face extreme loads, vibrations, and harsh conditions. They play a vital role in high-stress assemblies like engines, turbines, bridges, and industrial equipment. Thabiso Steel’s Alloy Steel Gr 12.9 Fasteners offer reliable and long-lasting fastening solutions, bolstering the infrastructure and industrial development across South Africa.
ThabisoSteel 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 Cape Town, South Africa.
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