Nanjing Bier Wo hardware company specializing in the production and sales of precision metal turning parts, CNC turning parts, automobile turned parts, machining parts car dashboard, riveted pieces, threaded fasteners and other hardware products. Products include: positioning beads, self-tapping thread inserts, wire thread insert, isolated hexagonal stud, stud yin and yang, hexagonal rod, copper sleeve, copper sleeve, pin, cylindrical pin, cotter pin, stainless steel shaft, copper axes, knurled screws, knurled nut, anti-theft screws, self-locking nuts, captive screws. Nanjing waisted knurled screws GB839, Shijiazhuang knurled screws waisted, waisted Hebei knurled screws, Xi'an knurled screws waisted, waisted knurled screws Shaanxi, Hebei and knurled screws waisted, waisted Chongqing knurled screws, Beijing knurled screws waisted, waisted knurled screws Changsha, Shenzhen knurled screws waisted, waisted knurled screws Guangzhou, Ningbo and knurled screws waisted, waisted Jiujiang knurled screws, Xuzhou waisted knurled screws, Nantong knurled screws waisted, waisted Taizhou knurled screws.