Send Email
8613930077493
0102030405
China Hexagon Bolt and Hex Nuts Suppliers - Carbon Steel & Stainless Steel SS304/316 Factory Products with Black Finish
DIN934 Hexagon Bolt Carbon steel Stainless Steel SS304 316 Hex Nuts
| Standard | GB, DIN, ISO, JIS |
| Size | M3-M100; 1/4-4″ or non-standard |
| Material | Carbon steel, stainless steel, brass , alloys steel etc. |
| Finish | Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G. |
| Hex head bolt and nut Grade | 4.8,6.8,8.8,10.9,12.9,ASTM A194 2, 2H, 4, 7, 7M,8, 8M; A563 Gr. A, C, DH ,DH3 |
| Packing | Box, carton or plastic bags, then put on pallets, or according to the demand of the customers |
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.
Frequently Asked Questions
What standards do the DIN934 hexagon bolts and nuts comply with?
They conform to major international standards including GB, DIN, ISO, and JIS.
What materials are available for these hex nuts and bolts?
We offer them in carbon steel, stainless steel (including SS304 and SS316), brass, and alloy steel.
What are the available sizes and grades?
Sizes range from M3 to M100, and 1/4" to 4" (or non-standard). Available strength grades include 4.8, 6.8, 8.8, 10.9, 12.9, ASTM A194 (2, 2H, 4, 7, 7M, 8, 8M), and A563 (Gr. A, C, DH, DH3).
What is the purpose of the Black surface treatment?
Blackening is a metal heat treatment that forms an oxide film on the metal surface. This layer isolates the air to prevent rust and corrosion.
When is the Hot-dip Galvanized (HDG) finish recommended?
HDG is recommended for chemical plants, refineries, and coastal or offshore operating platforms because of its excellent corrosion resistance, sacrificial protection for steel substrates, high weather resistance, and resistance to salt water erosion.
What options are available for product packaging?
Products can be packed in boxes, cartons, or plastic bags, then placed on pallets, or customized according to customer demands.