Nuts
A nut is internal threaded fastener which joins two components together with opposite mating bolt. Nuts must be property class matching with respective bolts, for example,class 8 hexagon nut often support the bolt with class 8.8 without stripping.
Zhejiang s-metal co., limited supply types of nuts with steel and stainless steel material, like Hexagon nut, hexagon flange nut,cap nut, wing nut and nylon insert lock nut etc.