copper screw 1. Delivery time:7days 2.OEM,manufacturer 3.ISO9001:2008,ROHS copper screw1.Complete size M2-M36; Variety of materials:Carbon steel, Stainless steel,copper; Fine surface trearment: Plain, zinc plated etc.2.Variety of standards:ISO,GB,DIN,JIS,ANSI3.We have passed ISO9001-2008,SGS,ROHS certificate.4.We have a lot of years technical experiences, we are engaged in the hardware for many ...