KS B ISO 7412-2023 Hexagon bolts for high-strength structural bolting with large width across flats(short thread length)-Product grade C-Property classes 8.8 and 10.9
2023KS B ISO 7412-2023 Hexagon bolts for high-strength structural bolting with large width across flats(short thread length)-Product grade C-Property classes 8.8 and 10.9
0000 KS B ISO 7412-2008(2018)
2008KS B ISO 7412:2008 Hexagon bolts for high-strength structural bolting with large width across flats(short thread length)-Product grade C-Property classes 8.8 and 10.9