Standard:DIN Product name:custom m3 m4 m5 m6 hex socket pan Button Head Titanium screws Size:m3 m4 m5 m6 m8 m10 etc material available:Titanium,steel,stainless steel,brass etc finish:plain,nickle zinc brass plating,black anodizing Service:OEM ODM factory:Shenzhen huaxianglian hardware factory origin:Shenzhen,Guangdong,China