Liam Steel is a reputable manufacturer and supplier of Alloy Steel Gr 12.9 Fasteners based in Manila, Philippines. The company focuses on crafting high-strength, durable, and dependable fasteners that are perfect for critical industrial and structural applications. These Grade 12.9 fasteners boast impressive tensile strength, toughness, and resistance to wear and corrosion. Produced under stringent quality control and adhering to international standards, Liam Steel guarantees precision, durability, and top-notch mechanical performance. Alloy Steel Gr 12.9 Fasteners find their place in heavy machinery, automotive, construction, and power generation sectors, providing secure and long-lasting fastening solutions for demanding environments.
Alloy Steel Gr 12.9 Fasteners are crafted from a meticulously balanced mix of carbon, chromium, molybdenum, and manganese, which boosts their strength, hardness, and resistance to corrosion. These fasteners undergo heat treatment processes like quenching and tempering to achieve remarkable tensile strength (at least 1,200 MPa) and excellent yield strength (at least 1,080 MPa). They also offer superior fatigue resistance, impact toughness, and dimensional stability. With outstanding mechanical performance, Alloy Steel Gr 12.9 Fasteners remain reliable even under extreme stress, vibration, and high temperatures, making them perfect for critical and heavy-duty applications.
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 |
Alloy Steel Gr 12.9 Fasteners are extensively utilized in industries that require high-strength and trustworthy fastening solutions. They are particularly suited for automotive assemblies, heavy machinery, construction equipment, power plants, and oil and gas installations. These fasteners are commonly used in the assembly of engines, gearboxes, pressure vessels, and high-load structural components where safety and performance are paramount. With excellent wear and corrosion resistance, they ensure secure joints and prevent loosening, making them a go-to choice for demanding applications.
Liam 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 Manila, Philippines.
Copyright 2025 Liam Steel. All rights reserved
