bolt nut 1.Tight tolerance. 2. Small order available. 3.Professional OEM& ... :2008. 2013 top quality and customized all size of bolt nut in dongguan and shenzhenWe can supply various bolts, nuts, washers ... ,welding, tapping, riveting,cutting,punching,drilling,turning,milling,grinding,rolling,cold drawing, spinning, forging, etc.MaterialAluminum, copper, brass, stainless steel, steel ...