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DIN931/DIN933 Hex Bolts and Nuts - China Factory Suppliers for 4.8/6.8/8.8/10.9/12.9 Steel Hex Cap Screws
| Standard: | DIN931 933 |
| Grade: | 4.8/6.8/8.8/10.9/12.9 |
| Material: | Low carbon steel/medium carbon steel/alloy steel |
| Size: | M3-M100; 1/4″-3″ |
| Finish: | black/zinc plated/hot dip galvanized |
| Mark: | According to customer’s requirement |
| Delivery time: | Normally in 30-40 days. |
| Quality: | Top high quality. |
| Package: | Cartons&pallets or according to customer’s requirement. |
Product Advantages
Measure and process using precision machine tools and measuring tools under strictly controlled environmental conditions.
With long life, low heat generation, high hardness, high rigidity, low noise, high wear resistance and other characteristics.
☆ The use of high-quality carbon steel steel, after precision processing and forming, greatly improves the user experience.
Surface Treatment
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.
Frequently Asked Questions
What is the difference between DIN 931 and DIN 933 standards?
DIN 931 specifies hex bolts with a partially threaded shank (featuring a plain shank portion), while DIN 933 specifies hex bolts that are fully threaded from the head to the tip.
Which steel grades do you provide for these hex bolts?
We manufacture hex bolts in multiple strength grades, including 4.8, 6.8, 8.8, 10.9, and 12.9, using high-quality low carbon steel, medium carbon steel, or alloy steel.
What size ranges are available for purchase?
We offer a wide sizing range from M3 to M100 in metric standards, and 1/4″ to 3″ in imperial sizes to fit various industrial applications.
What surface finishes do you offer for corrosion protection?
Our standard surface treatments include black oxide coating, zinc plating, and hot-dip galvanizing, depending on your application environment and rust prevention needs.
What is the typical delivery time and packaging format?
Our standard delivery time is normally 30-40 days. The products are securely packed in cartons and pallets, or packaged according to specific customer requirements.