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At Hazlewood Fasteners in Canberra, Australia, our high-tensile hex bolts stand as the backbone of demanding structural and industrial assemblies. Engineered for unforgiving workloads, these bolts bring brutal endurance, steadfast grip, and zero-compromise reliability to machinery, infrastructure, and high-stress frameworks. Precision-forged and meticulously finished, they deliver unwavering clamping strength where vibration, load surges, and mechanical fatigue continually test integrity. When the stakes are towering structures, heavy equipment, and mission-critical installations, Hazlewood’s high-tensile hex bolts don’t just fasten — they fortify, ensuring rock-solid performance where ordinary fasteners would bow under pressure.
High-tensile hex bolts are manufactured from alloy-enhanced carbon steel, strengthened through controlled heat treatment and quenching to achieve exceptional hardness, superior tensile strength, and long-term fatigue resistance. With high core toughness, impressive yield strength, and robust thread engagement, they hold firm against dynamic forces, shock loads, and shear stress. Precision tempering ensures optimal ductility to prevent brittle failure under extreme strain. These bolts deliver a mechanical profile tailored for uncompromising structural security, where steadfast durability and mechanical resilience are non-negotiable.
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Grades |
Grade 10.9, Grade 8.8, DIN 933 Grade 12.9 |
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Standard |
IS 1364 / IS 1363 & DIN EN ISO 4014 & 4017 DIN 931 / 933 |
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Size |
Dia M 20 to 100 mm Inch 3/4“ to 3.1/2“ |
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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 hex bolts serve as the backbone of heavy-duty construction and engineered machinery. They are indispensable in steel frameworks, automobile assembly, industrial machinery, mining rigs, bridge and tunnel structures, and power-driven equipment. Frequently chosen for high-stress joints, rotating systems, lifting assemblies, and vibration-intense environments, they excel in civil infrastructure, mechanical plants, rail systems, oil & gas equipment, and military-grade hardware. Wherever high shear loads, torque stress, and unforgiving mechanical conditions converge, high-tensile hex bolts ensure unwavering structural stability, protecting critical systems from catastrophic failure and reinforcing performance where strength cannot falter.
Our High Tensile Hex Bolts are carefully packaged to ensure they arrive undamaged. We use standard export packaging in wooden boxes or cases for international shipments that meet global packaging standards. Each bolt is marked with our trademark, grade, size and lot number. We provide custom icon options upon request. Our products contain manufacturer test certificates EN 10204-3.1, EN 10204-3.2 standards, raw material certificates, NABL-approved laboratory test reports, 100% radiography test reports, and third-party inspection reports.
Hazlewood Fasteners is a leading manufacturer and supplier of high-quality fasteners in Canberra, Australia, with over 8 years of experience serving global industries.
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