... :m10x80Specialized in manufacturing fasteners such as bolts,screws,studs,nuts,washers,threaded Rods,pins,rivets,stamping,circlips and other nonstandard parts.Shanghai Jinrui ... .7. Various nuts, flat gaskets, spring washers, mechanical bolts, tapping screws, fibreboard screws and hexagonal wood screws, etc. We can also process non-standard fasteners ...