Size
m3 ,m4 ,m5, m6, or custom
Material
titanium,Stainless Steel,steel,Alloy steel,Aluminum,etc.
Surface Treatment
ZINC PLATED,Galvanization,Nickel-plated,Black oxide,Dacromet
color
red,yellow,blue,green,black,white
Application
roof,solar mounting,frame screws
Standard
DIN,BS,ANSI,JIS,Nonstandard
Key words
China roofing screws
Advantage
high quality,waterproof,custom
Type
self drilling tapping