... of screw:zp,hdg,black,oxide 4.ISO9001:2008 name: high quality black Drywall screwFinish: galvanize flash nickel, black nickel, Zinc, Chrome.We ... our customers and produce according to customer requested.standard of black Drywall screw: JIS,BS,GB,ISO,DIN,AISIsize: according to ... plastic bags and box and cantons.We will ship the black Drywall screw within 3-5 working days after confirming customers ...