
A325tc Bolt Manufacturer for Tension Control Bolt Twist off Type. Customizable Specifications: Offers customized diameter, length, finish, and thread types to meet specific project needs. High Strength Material: Manufactured from High Strength Steel with grades including 10.9, A325TC, and A490TC. Trusted by Major Projects: Used in landmark projects like Shenzhen Ping An Building and Hongkong-Zhuhai-Macau Bridge. Professional Manufacturer: Established in 2007 with 17 years of experience and ISO9001 certification. Strict Quality Control: National Enterprise Technology Center with 100% inspection and qualified QC staff. Flexible OEM/ODM Service: Supports full customization from samples or designs with flexible customization options. Large Production Capacity: Annual production capacity of 1,500 million pieces with 10 production lines. Multiple Surface Treatments: Provides Hot-dipped galvanized, Dacromet, Black oxide, and Phosphorus saponification.