Phanuphong Steel and Plates, a reputable manufacturer and supplier located in Bangkok, Thailand, specializes in high-quality Alloy Steel Gr 2HM Fasteners that are built to handle the tough demands of various industries. Renowned for their precision engineering, durability, and outstanding performance, these fasteners are crafted using cutting-edge technology and adhere to strict quality standards. With a strong commitment to customer satisfaction, Phanuphong Steel guarantees timely deliveries and tailored solutions to meet a wide range of project needs. Their Alloy Steel Gr 2HM Fasteners are well-known for their impressive tensile strength, wear resistance, and ability to perform in extreme conditions.
These fasteners are primarily made up of chromium, molybdenum, and carbon, with small amounts of manganese, phosphorus, and sulfur that enhance their strength and machinability. This carefully balanced composition gives them remarkable toughness and resistance to stress corrosion cracking. On a mechanical level, these fasteners boast high tensile and yield strength, excellent hardness, and superior fatigue resistance. Their capacity to endure high temperatures and pressures makes them incredibly reliable for critical engineering applications where safety and durability are paramount.
Specification :Â ASTM A 194 ASME SA 194
Standard :Â DIN, ASTM, BS and all International Standards
Length :Â 3 mm to 2 mm
Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes
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
| Alloy Steel 2 | C | Mn | P | S | Si | Ni | Cr |
| 0.40% min | 1.00% max | 0.040% | 0.050% | 0.40% max | – | – |
| Specification | Material | Nominal Size, In. | Tempering Temp. °F | Proof Load Stress, ksi | Hardness Rockwell | See Note | |
|---|---|---|---|---|---|---|---|
| Min | Max | ||||||
| ASTM A194 Grade 2HM | Medium Carbon Steel, Quenched and Tempered | 1/4 – 4 | 1000 | 150 | 159 | 237 | 1,2,3 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Alloy Steel Gr 2HM Fasteners find extensive use in sectors like oil and gas, petrochemicals, power generation, and heavy machinery. Their strength and wear resistance make them ideal for high-pressure piping, valves, turbines, and structural assemblies. You’ll often see these fasteners in offshore platforms, refineries, and energy plants, where reliability in harsh and demanding environments is essential. They’re also utilized in automotive, aerospace, and construction projects, providing secure connections and long-lasting performance in settings that involve vibration, heat, and corrosive elements.
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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 Grade 2HM fasteners find extensive applications in high-temperature and high-pressure applications owing to their enhanced strength and resistance to corrosion. They are utilized extensively in the oil and gas industry, petrochemical, power generation, and heavy machinery sectors. These fasteners are applied in pressure vessels, heat exchangers, pipelines, flanges, and structural elements where reliability and endurance are the main concerns. Their superior mechanical properties also qualify them to perform well in high stress, thermal expansion, and hydrogen embrittlement environments. They are applied in offshore drilling, refineries, and power generation to provide safe and durable connections in critical industrial processes.





Phanuphong 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 Bangkok, Thailand.
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