Carriage Bolts

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Carriage Bolts Manufacturer and Supplier in Canberra, Australia

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At Hazlewood Fasteners in Canberra, Australia, our carriage bolts are crafted to deliver clean aesthetics, secure assembly, and steadfast performance across timber, metal, and infrastructure applications. Recognised by their smooth domed head and square neck, they offer tamper-resistance, flush seating, and vibration-stable fastening strength. Engineered for builders, furniture manufacturers, landscaping contractors, and industrial fabricators, these bolts ensure joints stay tight, aligned, and visually refined. When your project calls for fastening reliability with a finished, professional look — from decks to machinery mounts — Hazlewood’s carriage bolts provide durability, mechanical assurance, and long-lasting assembly stability.

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Carriage bolts are manufactured from high-quality carbon steel, stainless steel, or coated steel variants to deliver reliable tensile strength, thread durability, and corrosion resistance. Their form-locked square neck prevents bolt spin during tightening, ensuring steady torque transmission and solid joint compression. Available in plain, zinc-plated, hot-dip galvanized, and stainless grades, they offer mechanical resilience against shear stress, weather elements, and everyday operational vibration. The domed head design enhances safety and aesthetics while maintaining robust load-bearing performance across structural assemblies.

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Carriage Bolts Specifications

  • Carriage Bolts Standard: EU, IFI, CSN, Italian, ASME, British BS, Indian IS, ISO, DIN, Polish PN, SAE
  • Carriage Bolts Sizes: M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24, M30, M36, M100 to M160
  • Carriage Bolts Length: 3/8 to 8″
  • Carriage Bolts Materials: High Tensile, Carbon Steel, Stainless Steel, Inconel Fasteners, Incoloy Fasteners, Hastelloy Fasteners, Monel Fasteners, Silicon Bronze, Phospher Bronze, Aluminium Bronze, Nickel, Brass, Copper, Copper Nickel, Nitronic, Nimonic, ASME, ASTM
  • Carriage Bolts Coating: PTFE Coated Carriage Bolts, Hot Dip galvanized Carriage Bolts, Yellow Zinc Plated Carriage Bolts, Blue Zinc Plated Carriage Bolts, Black Zinc Plated Carriage Bolts, Zinc Cobalt Plated Carriage Bolts, Aluminium Zinc Flake Coated Carriage Bolts, Black Phosphate Carriage Bolts, Zinc Plated Carriage Bolts, Nickel Plated Carriage Bolts
  • High Tensile grades: 8.8 Bolts Carriage Bolts, 10.9 Carriage Bolts, 12.9 Carriage Bolts, 14.9 Carriage Bolts
  • Carriage Bolts Forming: Hot Forged Carriage Bolts & Cold Forged Carriage Bolts
  • Carriage Bolts Sub Type: Fully Threaded Carriage Bolts, Partial Threaded Carriage Bolts, Metric Carriage Bolts, Imperial Carriage Bolts

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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.

Carriage bolts are widely utilised in timber construction, agricultural equipment, outdoor structures, furniture fabrication, fencing systems, trailers, playground builds, and mechanical fixtures. Ideal for securing timber-to-metal or timber-to-timber connections, they excel in deck construction, pergolas, heavy benches, gates, machinery frames, shelving systems, docks, and wooden infrastructure exposed to weather. Their flush, snag-free head and anti-rotation square neck make them excellent for visible installations and vibration-affected components. When you need strong structural fastening paired with safety and clean finish, carriage bolts offer long-term stability and dependable mechanical grip.

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Types of Carriage Bolts

Plain Coarse Thread Exterior Carriage Bolt
Coarse Thread Carriage Bolt
20-Count Carriage Bolts
Galvanized Coarse Thread Exterior Carriage Bolt
Coarse Thread Interior Carriage Bolt
Stainless Coarse Thread Carriage Bolt

Our products like Carriage Bolts, are carefully packaged to ensure they remain undamaged during transit. Standard export packing in wooden boxes or cases is used for international shipments, adhering to global packaging standards. Each fastener is marked with our Trademark, Grade, Size, and Lot No. Customized marking options are available upon request. We provide Manufacturer Test Certificates compliant with standards such as EN 10204-3.1, EN 10204-3.2, Raw Materials Certificates, NABL approved Lab Test Reports, 100% Radiography Test Reports, and Third-Party Inspection Reports.

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