High Tensile Grade 4.6 Bolt

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Grade 4.6 Bolt Manufacturer and Supplier in Canberra, Australia

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At Hazlewood Fasteners in Canberra, Australia, our high tensile Grade 4.6 bolts are engineered for everyday structural reliability, rugged field performance, and cost-efficient durability. Built for robust assembly work across construction, machinery fabrication, transport equipment, and industrial maintenance, these bolts deliver steadfast clamping force and mechanical stability in demanding service conditions. Their dependable strength, balanced ductility, and resistance to shock loading make them an essential fastening backbone for infrastructure and heavy equipment. When projects call for trusted fastening muscle without over-engineering, Hazlewood’s Grade 4.6 bolts bring the perfect blend of practicality, strength, and long-term performance.

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High tensile Grade 4.6 bolts are manufactured from quality medium-carbon or mild alloy steel, precision-processed for consistent structure and mechanical reliability. Offering a minimum tensile strength of 400 MPa and a yield ratio of 60%, they provide solid strength, stable tension retention, and reliable ductility for dynamic loading conditions. Their balanced metallurgy ensures resistance to shear forces, vibration-induced loosening, and everyday operational stress, making them ideal for rugged yet cost-efficient fastening tasks across diverse applications.

Grade 4.6 Bolts Chemical Composition

Strength class or grade

Material and heat treatment

Chemical composition (analysis on the product) %

Min. hardening temperature °C

min

max

4.6

Carbon steel

–

0,55

0,050

0,060

Not specif

Strength class or grade	Material and heat treatment	Chemical composition (analysis on the product) %					Min. hardening temperature °C
		C		P	S	B
		min	max	max	max	max
4.6	Carbon steel	–	0,55	0,050	0,060	Not specified	–

ied

–

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Grade 4.6 Bolts Mechanical Properties

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

Grade 4.6 Bolts Specifications

Dimensions	ASME B18.2.1, B18.3
Melt Origin	South America/East Europe/JapanKorea/
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
Additional Certifications	PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Mandatory Requirements	Free from Mercury & Radioactive Contamination
Additional Requirements	NACE MR0103 / MR0175 / ISO 15156 Compliance

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Commited to High Quality Service

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 4.6 bolts are extensively used in construction frameworks, agricultural machinery, light industrial equipment, automotive assemblies, fencing structures, storage systems, and onsite fabrication works. Ideal for steel framing, timber-to-steel joints, mechanical assemblies, and equipment mounting, they provide durable fastening capability in both indoor and protected outdoor environments. Their balanced strength and ductile profile make them well-suited for installations requiring resilience under moderate static and dynamic loads. For builders, fabricators, engineers, and maintenance crews seeking proven industry-grade fastening performance with economic advantage, Grade 4.6 bolts deliver trustworthy and versatile connection strength.

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Types of Grade 4.6 Bolts

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.