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Lina Fasteners is a top-notch manufacturer and supplier located in Tunis, Tunisia, specializing in High Tensile Grade 10.9 Bolts designed for heavy-duty and high-load applications. These bolts are crafted to meet international standards, ensuring they provide outstanding strength, durability, and resistance to fatigue. By utilizing high-quality alloy steel, advanced heat treatment techniques, and rigorous quality control, Lina Fasteners guarantees consistent mechanical properties and precise dimensions. Their products are widely used across various sectors, including construction, infrastructure, automotive, heavy machinery, and industrial engineering, with a strong commitment to delivering reliable fastening solutions, superior quality, and timely service for demanding applications.
High Tensile Grade 10.9 Bolts are made from alloy steel and undergo a quenching and tempering process to achieve remarkable strength. They typically boast a minimum tensile strength of around 1,000 MPa, with a yield strength that is about 90% of that tensile value. These bolts excel in load-bearing capacity, exhibit high fatigue resistance, and possess good toughness. Grade 10.9 bolts maintain their dimensions even under extreme stress, resist loosening, and perform reliably in dynamic and high-pressure situations.
| Carbon Steel 10.9 | C | P | S | B |
|---|---|---|---|---|
| 0.20-0.55 | 0.025 | 0.025 | 0.003 |
| Grades | Size Range | PS [MPa] | YS (min) [MPa] | TS (min) [MPa] | Hardness [Rockwell] |
| Class 10.9 | 5–100 | 830 | 940 | 1040 | C33–39 |
| Grades | Grade 10.9 Bolt |
|---|---|
| Standard | ASTM A324, ASME SA324 |
| Size | Dia M 20 to 100 mm Inch 3/4″ to 3.1/2″ |
| 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.
High Tensile Grade 10.9 Bolts find their place in a variety of applications that demand exceptional strength and reliability. You’ll commonly see them in structural steel connections, bridges, automotive and truck assemblies, heavy machinery, and industrial equipment. They are extensively utilized in construction, infrastructure projects, mining equipment, and mechanical systems that face high loads and vibrations. Grade 10.9 bolts ensure secure joints, enhance safety, and offer a long service life, making them perfect for critical fastening tasks in challenging operating environments.
Our Grade 10.9 bolts are carefully installed to avoid travel damage. They are stored safely in sturdy wooden boxes or crates that meet strict international standards. Each bolt is marked with our company logo, grade, size and lot number. We offer complete documentation, including EN 10204-3.1 and EN 10204-3.2 certificates, material certificates, NABL-approved laboratory test reports, and professional test certificates. In addition, we ensure strict quality control through 100% radiographic and third-party inspection reports and guarantee that strict safety and performance standards will be met for every Grade 10.9 bolt shipped.
Lina Fasteners is a leading manufacturer and supplier of high-quality fasteners in Tunis, Tunisia, with over 8 years of experience serving global industries.
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