... high quality. Fasteners Standards: ASTM ,EN74 , BS1139, etctypes:Right-angle fasteners with bolt /without boltWT:1.2KG 0.9kg,0.85kg,0 ... .80kg /1.15KG 0.9kg,0.85kg,0.80kgButt fasteners with bolt/without boltWT:1.10kg,1.035kg/1.015kg,0 ... .95kgRotary fasteners with bolt/without boltWT:1.2kg,1.1kg,1.035kg/1 ...