• Material: Carbon Steel, Stainless Steel, Alloy Steel, etc

• Surface: ZnNi Plated Cr3+,Yellow zinc plated Cr3+, Blue/White/Clear zinc plated Cr3+, H.D.G, and other coating (Geomet, Ruspert,

 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, Bugle head, etc.

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

• Thread Type: Coarse, thread, Fine thread, General thread, Lightining thread

• Standard: DIN7504, Customized type

• Others: 

• - Precise point to drill, tap and fasten in one motion

• - Easily drilling it's own gap and shapping it's own thrading

• - Excellent and strong drilliing point

• - Excellent quality