Surface hardness: HV450(min)
Surface treatment: Color-plated zinc
Material：Carbon steel
Specification:ST3.5-ST6.3
Standard:GB /T 15856.4
Grade:A2-70、A2-80 、A4-80 etc.
Material：Stainless Steel
Specification:M5-M64
Standard: GB70.1 DIN912
Grade:8.8 、10.9、12.9
Surface treatment：Black oxide、Galvanized、Dacromet
Material：Carbon steel
Specification:M5-M64
Standard: GB5782 GB5783 DIN931 DIN933
Jiulong (Hebei) Fastener Manufacturing Co., Ltd.
Jiulong (Hebei) Fastener Manufacturing Co., Ltd. is located in the West Duanzhuang Industrial Zone, Yongnian District, Handan City, Hebei Province, which is known as the "Capital of Fasteners" in China.
The factory was originally built in 2015. and its main products include various bolts, nuts, flat washers, spring washers, self-tapping screws, self-drilling screws, drywall screws, expansion bolts and other fastener products.
News
Desember 2, 2024
High-strength hex bolts are high-strength bolts with hexagonal heads. The strength is mainly divided into grades 8.8, 10.9 and 12.9. The commonly used nominal diameters range from […]