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At Hazlewood Fasteners in Canberra, Australia, our carbon steel nuts embody rugged reliability and industrial-grade strength for everyday and heavy-duty applications alike. Designed to lock critical assemblies with steadfast grip and unwavering performance, these nuts ensure dependable fastening integrity across diverse environments. From infrastructure construction and mechanical installations to machinery fabrication and transport systems, carbon steel nuts deliver a balanced combination of endurance, economy, and mechanical assurance. When your projects demand uncompromised strength, stable torque retention, and trustworthy fastening security, our carbon steel nuts rise to the challenge, powering structural and industrial systems with unshakable confidence.
Carbon steel nuts are produced from carefully balanced iron-carbon alloys engineered for high tensile reliability, superior thread durability, and consistent load-bearing capability. Their metallurgical structure supports excellent machinability, dependable fatigue resistance, and firm clamping action under vibration and dynamic loads. Available in multiple hardness and strength classes, they provide strong torque resistance, secure preload retention, and uniform mechanical stability. Optional surface treatments—including galvanizing, zinc plating, phosphating, or black oxide—enhance corrosion resistance, allowing performance to be tailored for varied industrial, environmental, and structural applications.
| Specifications | : | ASTM A 307 ASME SA 307 / ASTM A 563 ASME SA 563 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
| Element | Carbon, max | Manganese, max | Phosphorus, max | Sulfur, max |
| Grade A | 0.29 % | 1.20 % | 0.04 % | 0.15 % |
| Grade B | 0.29 % | 1.20 % | 0.04 % | 0.05 % |
| Grade | Tensile, ksi | Yield, min, ksi | Elong %, min |
|---|---|---|---|
| A | 60 min | — | 18 |
| B | 60 – 100 | — | 18 |
| C* | 58 – 80 | 36 | 23 |
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.
Carbon Steel nuts of Hazlewood Fasteners are essential in a variety of demanding uses. In automotive industry they are used in the engine assembly, chassis parts and the suspension system. In construction, they attach reinforcements and other large equipment. Carbon Steel nuts are also used in machinery and general manufacturing due to their efficiency in fastening. They are ideal for use in areas that require strength and economy and where the environmental conditions cannot affect the rate of corrosion.
Carbon steel nuts are widely utilized across construction frameworks, machinery mounting, automotive assemblies, fabrication plants, transport equipment, energy facilities, mining operations, and general engineering systems. They securely pair with bolts, studs, and threaded rods to fasten beams, anchors, heavy machinery, pipe supports, platforms, and structural assemblies. Equally effective in dynamic and static loading environments, these nuts support mechanical housings, industrial equipment bases, plant structures, and material handling systems. When long-term fastening confidence, structural stability, and cost-efficient performance are critical, carbon steel nuts deliver enduring fastening integrity for demanding industrial and infrastructure environments.
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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