Fasteners, Standard Parts, Nut manufacturer / supplier in China, offering Zinc Coating Black Color M6 Flat Head Countersunk Bolts Nib Under Head Screws with Nut Made in China, Japanese Standard High Quality Fasteners JIS B 1256 M3-M14 Brass Large Plain Washers - Product Grade a Made in China, Zinc Plated Carbon Steel DIN 6340 M5-M52 High Quality Good Service Flat Washer Provided and Customized Made in China and so on.