Hexagon socket head screw
12.9 Hexagon socket head screw

Hexagon socket screws, also called hexagon socket bolts, cup head screws, hexagon socket screws, are called differently, but they mean the same thing. Commonly used hexagon socket head screws are also 4.8, 8.8, 10.9, and 12.9. They are also called hexagon socket screws and hexagon socket bolts. They have a hexagon socket head and a cylindrical head.





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