Flat Head Hexagon Socket Countersunk Screw

There are many options for surface treatment of Flat head Hexagon socket countersunk screw, such as black boiling, galvanizing (blue white zinc, yellow color zinc), non-electrolytic zinc flake coating, thick galvanized VZD, thick galvanized and sealed (ZSML), zinc nickel coating silver (ZNSHL), zinc nickel coating black (ZHBHL), etc., which can be purchased according to needs.

The DIN7991 Hexagon socket countersunk screw standard specifies different performance levels, such as 08.8, 10.9 and 12.9, and the corresponding load-bearing capacity. This standard can ensure that the countersunk bolt is basically flush with the surface of the substrate after installation, which saves space and has aesthetics.

Flat head Hexagon screws are commonly used in power equipment, electronic machinery, mechanical equipment, household appliances, digital products, water conservancy projects and other fields. Their application cases include the assembly and maintenance of mechanical equipment, the fixing and connection of power equipment, and a wide range of applications in the steel structure and construction industries.