... 2. standard:GB/DIN/ANSI.etc various of standard and non-standard fasteners (bolts, nuts, screws, etc) ... DIN ,ANSI/ASME,BS,GB,JIS,Non-standard,JB/T4.Surface:plain,zinc plated,black oxide,hot ... 30days after order confirmation.According to customers` drawings and/or samples or designed by ourseOur products have ... ,South Korea,Southeast various of standard and non-standard fasteners (bolts, nuts, screws, etc) ...