ASME Black Half Thread Hex Bolt Class 8.8 steel screws are suitable for fastening most machinery and equipment. To maintain corrosion resistance, use ASME Black Half Thread Hex Bolt with black ultra-corrosion-resistant-coated nuts and washers.
Place of Origin | CHINA |
Standard | ASME Black Half Thread Hex Bolt |
HS CODE | 7318159001 |
Brand Name | QBH |
Certification | ISO9001 |
Material | 35K, 40Cr, 35CrMo, SCM435, etc. |
Size | 1/4--1 |
Production Process | Cold forging≤300mm, Hot forging≤1000mm |
Class | 4.8/ 6.8/ 8.8/ 10.9/ 12.9 |
Delivery Time | Within 30 Days |