Name: screws (tapping, drilling, construction, machine screws)
Material: steel, stainless steel, brass, aluminum, titanium
Size: M2-M10 #2-#3/8
Length: 6mm to 200 mm
Recess: slot, phil, pozi, torx, spuare, socket, Combi, etc
Head style: pan, flat, hex washer, Turss, Oval, Round, hex, Fillister, etc
Thread: A,AB,F,D,CA,1,17,23,25,thread rolling
Heat treatment: case harden, through harden, none
Surface treatment: zinc, zinc nickel, Geomet, Delta, etc