Material: Carbon Steel, Stainless Steel, etc

Surface: Black Oxide, ZnNi Plated Cr3+,Yellow zinc plated Cr3+, Blue/White/Clear zinc plated Cr3+, Nylon Patch, and others coating (Geomet, Ruspert, etc), C4 / High SST & Kesternich Test requirements

Head type: Countersunk head, Pan head, Double Flat head, Wafer head, Oval head, , CSK with 4(6) ribs head, Index head washer head, etc.

Drive Type: Phillips, POZI, Square, Torx, Slpt, Hex washer, Phillps+Hex, Slot+Hex, Hex, Slot+Hex washer

Thread Type: 45/60 degree thread angle, Saw thread / Helical cutters (1-V) / Spiral thread / U thread / Evenly spaced millin thread / Straight tooth thread, Reverse thread, etc.

Standard: DIN7500, Customized screw

Others: 

- Stable and secure connection

- Create a tight fit between the screw and material

- No pre drilling is required

- Excellent quality