... sale service and on time delivery High quality standard and non-standard self clinching standoffs Detail Information About the ... 5M3, M4, M5 Length6~25mm, .312~1.062" Finish zinc, copper, nickel, black, chrome plating, galvanizing, etc.Advantage High ... is done, thank you!! Certifications show: China zinc plated steel/ stainless steel rivet nut,clinch stud nut standoff,SO/SOS/BSO/BSOS