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Amin Fasteners, based in Safat, Kuwait, stands out as a top-notch manufacturer and supplier of high-quality industrial fastening solutions, including their renowned High Tensile Grade 5.8 Bolts. With a reputation for precision engineering, strict quality control, and a commitment to customer satisfaction, Amin Fasteners crafts bolts that are built to perform reliably in tough industrial and construction settings. Their High Tensile Grade 5.8 Bolts are designed for exceptional strength, durability, and wear resistance. Catering to sectors like automotive, construction, machinery, and structural engineering, Amin Fasteners delivers robust fastening solutions tailored to meet the unique demands of Kuwait’s industrial landscape.
High Tensile Grade 5.8 Bolts are generally crafted from medium carbon steel, which is quenched and tempered to ensure high strength and durability. The chemical makeup includes carbon, manganese, and other alloying elements that boost their tensile properties. On the mechanical side, these bolts provide a minimum tensile strength of 500 MPa and a yield strength of 400 MPa, ensuring they can handle significant loads. They also showcase good toughness, hardness, and wear resistance, making them perfect for applications that require moderate to high mechanical performance. This blend of strength and ductility guarantees reliable performance under both dynamic and static loads.
Strength class | Material and heat treatment | Chemical composition (analysis on the product) % | Minimum hardening temperature °C | ||||
C | P | S | B | ||||
min | max | max | max | max | |||
5.8 Grade Bolt | Carbon steel | – | 0,55 | 0,050 | 0,060 | Not specified | – |
Head marking | Grade | Material | Proof strength | Yield stress (min.) | Tensile strength (min.) | Core hardness (Rockwell) |
Class 5.8 | Low or medium carbon steel | 380 Mpa | 420 Mpa | 520 Mpa | B82-95 |
| Grade 5.8 Fasteners Grades | DIN 933 Grade 12.9 |
| Grade 5.8 Bolts Standard | ASTM F568, ASME SF568 |
| Grade 5.8 studs Size | Dia 1.6mm to 100 mm Inch 3/4“ to 3.1/2“ |
| Grade 5.8 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.
High Tensile Grade 5.8 Bolts find their place in various industries and applications that demand dependable strength and moderate mechanical performance. They’re frequently used in automotive assembly, machinery, structural frameworks, and construction projects. These bolts are perfect for securing equipment, flanges, and mechanical components that face moderate loads and vibrations. Moreover, they are utilized in general engineering, metal fabrication, and industrial installations where dependable performance is crucial.
Our Grade 5.8 bolts are carefully packed to prevent wear and tear during transport. They are packed in standard export packaging, sturdy wooden boxes or boxes that meet international standards. Each bolt is clearly marked with the trademark (company LOGO), grade, size and lot number. We offer EN 10204-3.1, EN 10204-3.2, raw material certificates, NABL-approved laboratory test reports, and professional test certificates for 100%. Radiography test reports and third-party inspection reports are used to ensure quality control and compliance.
Amin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Safat, Kuwait, with over 8 years of experience serving global industries.
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