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China DIN931/DIN933 Hex Bolt and Nut Steel Hex Cap Screw - Quality Suppliers and Factory for Grade 4.8 to 12.9
| 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
Precision Machining
Measure and process using precision machine tools and measuring tools under strictly controlled environmental conditions.
High-quality Carbon Steel
With long life, low heat generation, high hardness, high rigidity, low noise, high wear resistance and other characteristics (35#/45#).
Cost-effective
The use of high-quality carbon steel steel, after precision processing and forming, greatly improves the user experience.
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.
Frequently Asked Questions
What manufacturing standards do your hex bolts comply with?
Our hex bolts are manufactured in strict compliance with the DIN931 and DIN933 standards, ensuring dimensional accuracy and compatibility for various industrial assemblies.
What material grades and options do you offer?
We supply hex bolts in multiple strength grades including 4.8, 6.8, 8.8, 10.9, and 12.9. These are fabricated using premium low carbon steel, medium carbon steel, or alloy steel depending on your requirements.
What surface treatments are available for rust prevention?
To prevent corrosion and ensure durability, we offer black oxide treatment, zinc plating, and hot-dip galvanization finishes based on your application environment.
What size ranges can you provide?
We offer a wide range of standard metric sizes from M3 to M100, as well as imperial sizes ranging from 1/4″ to 3″ to suit diverse structural and mechanical 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 customized according to specific customer requirements to ensure safe transit.