High Strength Screw Cylindrical Cup Head Hexagon Socket Bolt DIN912 Blackened Galvanized Countersunk Head Flat Head Cyl

Uses:
Similar to countersunk screws, the screw head is embedded in the machine part, and the connection strength is large, but the corresponding specification of hexagonal wrench must be used to install and remove the screw. Generally used for various machine tools and their accessories.

High-strength hexagon socket bolts refer to those of grade 8.8 or above, including grades 10.9 and 12.9. Grade 12.9 hexagon socket bolts generally refer to knurled, natural black hexagon socket oiled screws.