A2-70 Fasteners Introduction A2-70 fasteners are a type of stainless steel fastener used widely across industries due to their corrosion resistance, strength, and durability. They are part of the 300-series of stainless steel, which is known for its excellent resistance to rust and corrosion. The "A2" designation refers to a particular grade of stainless steel, while "70" indicates the minimum tensile strength (in kg per square millimeter) of the fastener, which is 700 N/mm² or 70 kg/mm². These fasteners are highly suitable for both indoor and outdoor applications, including marine environments. Composition A2-70 fasteners are primarily made from 304 stainless steel, which is an austenitic steel alloy. The composition of A2-70 typically includes: Chromium (Cr): 18% (provides excellent corrosion resistance) Nickel (Ni): 8% (improves the strength and toughness of the material) Manganese (Mn): 2% (enhances hardness and strength) Silicon (Si): 0.75% (improves resistance to oxidation) Carbon (C): 0.07% (helps improve the strength and hardness of the material) Phosphorus (P) and Sulfur (S): Very low percentages to avoid brittleness This composition gives the fasteners their characteristic features of resistance to corrosion, ease of maintenance, and overall strength, making them reliable for a wide range of applications. Sizes and Length A2-70 fasteners are available in a wide range of sizes and lengths, which makes them versatile for use in various settings. Some standard specifications for these fasteners are: Thread Size: Common sizes range from M3 to M100 (metric) or from 1/8" to 4" (imperial). Length: Fasteners come in varying lengths from 6 mm to 300 mm or more, depending on the application. Head Styles: These fasteners are available in several head styles, including hex head, round head, pan head, and countersunk head. Thread Type: A2-70 fasteners typically feature either coarse or fine threads, depending on the load requirements and the nature of the assembly. The availability of these fasteners in multiple sizes and lengths ensures they can be used in diverse environments, from delicate machinery to large construction projects. Uses A2-70 fasteners are used in a variety of industries, including: Construction: Due to their high strength and resistance to corrosion, A2-70 fasteners are often used in structural applications, bridges, and buildings. Marine Applications: The fasteners' resistance to saltwater corrosion makes them ideal for use in marine environments, such as on ships, docks, or offshore rigs. Automotive Industry: A2-70 fasteners are widely used in automotive applications for fastening parts that are exposed to moisture and external weather elements. Food Processing Equipment: These fasteners are used in the food industry due to their corrosion resistance, ensuring hygiene and safety standards. Electrical Equipment: The fasteners are also commonly used for the assembly of electrical components due to their reliable strength and corrosion resistance. Oil & Gas Industry: A2-70 fasteners are used in machinery and pipelines that need to endure harsh environmental conditions. A2-70 fasteners A2-70 stainless steel fasteners A2-70 fastener supplier A2-70 fastener manufacturer A2-70 bolts and screws A2-70 stainless steel bolts A2-70 nuts and washers A2-70 grade fasteners A2-70 corrosion-resistant fasteners A2-70 stainless steel hardware Stainless steel A2 fasteners 304 stainless steel A2-70 fasteners A2-70 fasteners for construction A2-70 fasteners for marine applications Industrial fasteners A2-70 A2-70 fasteners supplier near me Buy A2-70 fasteners online A2-70 fasteners in bulk Wholesale A2-70 fasteners High-strength A2-70 fasteners Conclusion A2-70 fasteners are a robust and versatile choice for a wide range of applications, thanks to their excellent strength, corrosion resistance, and ease of use. The combination of chromium, nickel, and other alloying elements provides both high tensile strength and resistance to environmental factors like moisture and corrosion. Available in a wide variety of sizes and lengths, A2-70 fasteners can be used in industries ranging from construction to food processing, ensuring reliability and long-term performance. Whether used indoors or in harsh outdoor environments, these fasteners are a dependable option for securing components across diverse sectors.