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China Suppliers Factory DIN931/DIN933 Hex Bolt and Nut Steel Hex Cap Screw - Grades 4.8 to 12.9 Available
| 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
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
Q: What standards do these hex bolts and nuts comply with?
Our hex bolts and nuts comply with the DIN931 and DIN933 standards, ensuring precise dimensions and dependable industrial compatibility.
Q: What materials and strength grades are available?
We offer products made from low carbon steel, medium carbon steel, and alloy steel. Available grades include 4.8, 6.8, 8.8, 10.9, and 12.9 to meet various load requirements.
Q: What size ranges and thread specifications do you supply?
Our size availability ranges from M3 up to M100 metric sizes, and 1/4″ to 3″ in imperial sizes, covering a wide array of application scales.
Q: What surface treatments do you offer for corrosion prevention?
We offer multiple surface finishes, including black oxide (which forms an air-isolating protective film), zinc plating, and hot-dip galvanizing for enhanced rust resistance.
Q: What is the typical delivery time and packaging format?
The delivery time is normally within 30 to 40 days. Standard packaging consists of secure cartons and pallets, which can also be customized according to specific customer requirements.