Hot Selling for Hex Head Machine Screws - DIN603 stainless steel carbon steel carriage bolt and nut –

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We thinks what customers think, the urgency of urgency to act in the interests of a customer position of principle, allowing for better quality, lower processing costs, prices are more reasonable, won the new and old customers the support and affirmation for Butterfly Bolt And Nut, Metric Hex Screws, Bolt With Lock Washer, Our company is working by the operation principle of "integrity-based, cooperation created, people oriented, win-win cooperation". We hope we can have a friendly relationship with businessman from all over the world.

Hot Selling for Hex Head Machine Screws - DIN603 stainless steel carbon steel carriage bolt and nut – Detail:

Carriage bolt and nut
1.Standard:DIN603, ASME B18.5
2.Size:M5-M20; 1/4″-1″
3.Length:10mm-500mm
4.Grade:8,8M
5.Mark:8,8M
6.Material:stainless steel
7.Finish:plain
8.Delivery time:Normally in 30-40 days.
9.Package:Cartons&pallets or according to customer’s requirement.
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DIN (1)

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
☆ 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.

DIN (2)

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