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Aria Fasteners, located in Hamilton, New Zealand, stands out as a reliable manufacturer and supplier of high-strength industrial fastening solutions. Their High Tensile Grade 8.8 Bolts are crafted to deliver outstanding strength, durability, and dependable performance in even the most challenging applications. With a focus on precision and rigorous quality control, these bolts guarantee secure and long-lasting connections in critical assemblies. Aria Fasteners caters to various industries, including construction, automotive, heavy machinery, and infrastructure projects, providing components designed to uphold structural integrity under significant loads and mechanical stress.
Constructed from medium-carbon steel that undergoes quenching and tempering, High Tensile Grade 8.8 Bolts boast enhanced tensile strength and toughness. They feature a minimum tensile strength of 800 MPa and a yield strength of 640 MPa, making them perfect for applications that demand high-load-bearing capacity. The bolts are precision-threaded to ensure a perfect fit with corresponding nuts and washers, delivering optimal clamping force and reliable performance in both static and dynamic assemblies.
| Bolts Grade | Material and heat treatment | Chemical composition (analysis on the product) % | °C Min hardening temperature | ||||
| C | P | S | B | ||||
| minimum | max | max | max | max | |||
| 8.8 | Alloy/ Carbon steel (B, Mn, Cr), quenched and tempered | 0,15(3) | 0,40 | 0,025 | 0,025 | 0,003 | 425 |
| Quenched and tempered carbon steel Bolts | 0,25 | 0,55 | 0,025 | 0,025 | |||
| Quenched and tempered alloy steel Bolts | |||||||
| Grades | Size Range | PS [MPa] | YS (min) [MPa] | TS (min) [MPa] | Hardness [Rockwell] |
|---|---|---|---|---|---|
| Class 8.8 | Under M16 | 580 | 640 | 800 | |
| 17-72 | 600 | 660 | 830 | C23–34 |
| Grade 8.8 Bolts Grades | Grade 8.8 |
| En 15048 Grade 8.8 Size | Dia M 20 to 100 mm Inch 3/4“ to 3.1/2“ |
| 8.8 High Tensile Bolts Standard | ASTM A324, ASME SA324 |
| Grade 8.8 Fasteners finish | Zinc plated / Plain / Hot dip galvanised |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Grade 8.8 bolts are widely used in high-pressure applications requiring strength and stability. They are commonly used in the construction engineering industry, creating critical components in bridges, buildings and heavy construction projects. In the automotive industry, these screws are used in engine assemblies and chassis suspension systems to provide reliable fastening under harsh conditions, in addition to being used in industrial equipment to ensure that tight connections are made with equipment under heavy loads and vibration. Compliance with international standards and exceptional performance make them desirable for complex engineering and design applications.
These bolts find extensive use in industries that require robust and durable fastening solutions. They are particularly well-suited for structural steel frameworks, heavy machinery assemblies, automotive components, bridge construction, and the installation of industrial equipment. High Tensile Grade 8.8 Bolts are also utilized in flanged joints, turbines, and infrastructure projects where secure and lasting fastening is essential. Their blend of high strength, toughness, and reliability makes them a trusted choice for demanding industrial and construction applications.
Aria Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hamilton, New Zealand, with over 8 years of experience serving global industries.
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