Dear Sir Madam, Standard:ISO,GB,DIN,JIS,ANSI,BSW Name:CNC machined dome flat head cap brass chicago post screws blind slotted 1 4 inch (6mm) soland stainless steel chicago screws Size:Length:6mm,8mm,10mm,12mm,15mm,20mm,25mm,30mm,40mm,50mm,60mm,,120mm Finish:sol stainless steel Certification:ISO, ROHS,SGS Service type:drawing sample processing Service:OEM,ODM