1) Material:Low carbon steel, Alloy steel and st. steel(A2/A4)
2) Surface: Plain, Zinc plated(Cr3 and Cr6), Yellow zinc plated, black oxide, black Zinc plated, Hot Dip Galvanization, Decromate, ruspert.
3) Drill hole, forms mating thread and c operation. No more need of difficult alignment of two or more elements.
4) Eliminates power drill, drill bits and elaborate and costly press tools, machine taps and their maintenance. Only one tool required – The screw drive.
5) Ensure correct hole size every time, resulting in better thread engagement and tighter clamp.