product name:recessed hex bolts color:white,black,bright zinc ... C1006,C1010,C1018,C1022,C1035K,C1045 8, Alloy steel: SCM435,10B21Specification& gaugeM0.8-M10 Surface FinishingZn- Plated,Ni- ... customersWe have advanced equipment and outstanding and production screw.The QA entire journey quality monitoring, QC strictly ... other detail for our reference if Non Standard screw ,and then we can quote you the ...