Starting from Acid Pickling, Annealing, Wire drawing, Forming, Thread rolling, Heat treatment to finally packaging is all manufactured, and integrated within the Fang Sheng factory.
Therefore, the product quality of the entire manufacturing chain can be strictly controlled. It didn’t stop there. Fang Sheng did not just satisfy with 12.9 socket screw, it has also transformed into products with technical level and high added value, such as customized special screws for automobiles, locomotives, trucks, high-speed railways, and heavy machinery industries.
Hexagon Socket Head Cap Screws, Hexagon Socket Low Head Cap Screws, Hexagon Socket Countersunk Head Cap Screws, Hexagon Socket Button Head Cap Screws, Hexagon Socket Flange Button Head Cap Screws, Hexagon Socket Head Shoulder Screws, Hexagon Head Bolts, Hexagon Flange Bolts, MAThread®, SEMS, Weld Screw, Special Bolt, Double End Stud