ZI EA Factory is your reliable partner of Countersunk Flat Head Cap Screw, including Hex Socket Flat Head Cap Screws and Flat Countersunk Nib Bolts. 

Generally, people would use Countersunk Flat Head Cap Screws or Countersunk Bolts when it’s necessary to have a smooth surface. The flat head design makes it stay flush with or below the surface of the surrounding material.

Application of Countersunk Flat Head Cap Screws includes bridge decking, walkways, and railing.

Standard and nonstandard countersunk flat heads are available in ZI EA Factory. Special tooling can be created and it’s available to have the screws with or without a slot in the head, with or without nibs under the head, nonstandard head dimensions, heads with your company’s name or logo, etc.

ZI EA Factory production range –

Major Diameter: M6～M24 ( 1/4＂～ 1＂)

Length: 16mm～300mm (5/8＂～ 12＂)


Material available-
Carbon Steel, Alloy Steel and Stainless Steel.