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China DIN603 Stainless Steel Carriage Bolt and Nut Suppliers - High-Quality Factory Products
Carriage Bolt and Nut
Standard: DIN603, ASME B18.5
Size: M5-M20; 1/4″-1″
Length: 10mm-500mm
Grade: 8, 8M
Mark: 8, 8M
Material: Stainless Steel
Finish: Plain
Delivery Time: Normally in 30-40 days
Package: Cartons & pallets or customized
Product Features
Surface Treatment
Black
☆ Black is a common method for metal heat treatment. The principle is to make an oxide film on the metal surface to isolate the air and achieve rust prevention. Blackening is a common method for metal heat treatment. The principle is to make an oxide film on the metal surface to isolate the air and achieve rust prevention.
Zinc
☆ Electro-galvanizing is a traditional metal coating treatment technology that provides basic corrosion resistance to metal surfaces. The main advantages are good solderability and suitable contact resistance. Due to its good lubrication properties, cadmium plating is commonly used in aviation, aerospace, marine, and radio and electronic products. The plating layer protects the steel substrate from both mechanical and chemical protection, so its corrosion resistance is much better than zinc plating.
Hdg (Hot-Dip Galvanized)
☆ The main advantages are good solderability and suitable contact resistance. Due to its good lubrication properties, cadmium plating is commonly used in aviation, aerospace, marine, and radio and electronic products. The plating layer protects the steel substrate from both mechanical and chemical protection, so its corrosion resistance is much better than zinc plating. Hot-dip zinc has good corrosion resistance, sacrificial protection for steel substrates, high weather resistance, and resistance to salt water erosion. It is suitable for chemical plants, refineries and coastal and offshore operating platforms.
Frequently Asked Questions (FAQ)
Q: What manufacturing standards do your carriage bolts and nuts conform to?
A: Our carriage bolts and nuts are manufactured in strict compliance with DIN603 and ASME B18.5 standards.
Q: What sizes and lengths of carriage bolts are available?
A: We supply sizes ranging from M5 to M20 (metric) and 1/4″ to 1″ (inch), with lengths available from 10mm up to 500mm.
Q: What material and grade options do you offer?
A: These products are made of high-quality stainless steel and are available in grade/mark options of 8 and 8M.
Q: What are the differences between your Black and Zinc surface treatments?
A: Black treatment forms an oxide film to isolate air and prevent rust. Zinc (electro-galvanizing) provides basic corrosion resistance, good solderability, and suitable contact resistance.
Q: When should I choose Hot-dip Galvanized (Hdg) carriage bolts?
A: HDG provides excellent corrosion resistance, sacrificial protection, high weather resistance, and resistance to salt water erosion. It is highly recommended for chemical plants, refineries, and coastal or offshore operating platforms.
Q: What is the typical delivery time and packaging configuration?
A: The standard delivery time is normally 30-40 days. Standard packaging consists of cartons and pallets, which can also be customized to meet specific customer requirements.