Nut hardware fastening fittings nut in a kind of, the outside diameter copy is hexagonal, and has six angles, one side is inlaid with 65 manganese steel with a toothed spring washer, side 2113 shaped like K shape so called K shaped screw 5261 mother.K nuts mainly include: M3, M4, M5, M6, M8, M10, M12 and British #6, #8, #10, 1/4, 5/16, 1/2 and so on. The products are mainly suitable for hardware fastening accessories of machinery, furniture, electrical appliances, 4102 electronic 1653/ computers, motor vehicles, sports equipment and other industries.
