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Mazin Fasteners, located in Muscat, Oman, has established itself as a top-notch manufacturer and supplier of high-quality industrial fasteners, with a focus on bolts, nuts, and screws. One of their standout products is the High Tensile Grade 4.6 Bolt, known for its remarkable strength and reliability, making it perfect for tough engineering tasks. Crafted to meet international standards, Mazin Fasteners guarantees precision in manufacturing, durability, and consistent performance in every bolt they produce. The company caters to various sectors, from construction to machinery, and is dedicated to providing strong fastening solutions that boost structural integrity, safety, and operational efficiency for clients throughout Oman and beyond.
These High Tensile Grade 4.6 Bolts are primarily made from medium carbon steel, with carefully controlled levels of carbon, manganese, and other alloying elements to improve strength and ductility. They boast a minimum tensile strength of 400 MPa and a yield strength of 240 MPa, ensuring dependable performance under moderate stress. These bolts are designed to offer good toughness, wear resistance, and dimensional stability. With standard specifications that guarantee uniformity and quality, Grade 4.6 bolts are perfect for mechanical assemblies that need secure fastening while balancing strength, flexibility, and resistance to corrosion.
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Strength class or grade |
Material and heat treatment |
Chemical composition (analysis on the product) % |
Min. hardening temperature °C |
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|
C |
P |
S |
B |
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min |
max |
max |
max |
max |
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4.6 |
Carbon steel |
– |
0,55 |
0,050 |
0,060 |
Not specif
ied |
– |
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Class/ Grade |
Material |
Proof stress |
Yield strength (min.) |
Tensile strength (min.) |
Core hardness (Rockwell) |
|
Grade 4.6 |
Low or medium carbon steel |
225 Mpa |
240 Mpa |
400 Mpa |
B67-95 |
|
Dimensions |
ASME B18.2.1, B18.3 |
|---|---|
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Melt Origin |
South America/East Europe/JapanKorea/ |
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Product Origin |
Made in India |
|
Threads Configuration |
ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads |
|
Certification |
Dual Certified As per ASTM & ASME Codes |
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Additional Certifications |
PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
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Mandatory Requirements |
Free from Mercury & Radioactive Contamination |
|
Additional Requirements |
NACE MR0103 / MR0175 / ISO 15156 Compliance |
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 4.6 Bolts find their place in structural, mechanical, and industrial applications where moderate tensile strength is essential. They’re commonly used in light-to-medium machinery, automotive assemblies, construction frameworks, and equipment installations, providing reliable joint integrity under typical load conditions. These bolts are ideal for fastening components in bridges, steel structures, pipelines, and mechanical devices that require stable, durable connections without unnecessary complexity. Their combination of strength and ductility ensures safety and performance in both dynamic and static environments. Mazin Fasteners proudly supplies these bolts to industries in Oman looking for dependable fastening solutions.
Our Grade 4.6 bolts are carefully packed to prevent wear and tear during delivery. Standard export packaging is made of wooden boxes or bottles that meet international packaging standards for export. Grade, Size, and Lot No. Each bolt is marked with a symbol. We provide customized symbols for the products at the customer’s request. For quality assurance and regulatory compliance, we issue professional test certificates per EN 10204-3.1, EN 10204-3.2, raw material certificates, NABL-approved laboratory test reports, 100% radiography test reports, and third-party inspection reports.
Mazin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Muscat, OMAN, with over 8 years of experience serving global industries.
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