Ningbo SongHe Fastener Co.,Ltd is a professional stainless steel fastener,carbon steel fastener manufature in Ningbo china.We mainly use stainless steel(SUS304, SUS304L, SUS316, SUS316L, SUS200, SUS201 and carbon steel (C1018A,C1022A,35#,45#,35CrMo, 42CrMo,40Cr) to produce the fastener products so that the fastener machine property could be in A2-70, A2-60, A4-80, A4-70. 4.8, 6.8, 8.8, 10.9, 12.9. All fastener products are strictly according to the ISO, JIS, DIN,ANSI/ASME standard.
Fastener products domain:
Bolt series: Hexagon head screws: DIN931, DIN933, DIN601, ISO4014, ISO4017, ISO4016), Hexagon socket cap screws, (DIN912, ISO4762), carriage bolts, (DIN603, DIN604, DIN605), Lifting eye bolts, (DIN580, DIN582, ISO3266), Studs metal and Thread rods, ( DIN975, DIN938, DIN939, DIN940, ISO8674) ASME/ANSI B18.3.1M, ANSI/ASME B18.3.1M, DIN933-ANSI B18.2.3.1M, ANSI/ASME B18.3.6M, ANSI/ASME B18.3.3M
Nut series: Hexagon Nuts, Hexagon thin Nuts, (DIN934, DIN935, DIN936, DIN439, ISO4032, ISO8673, ISO4035)Hexagon flange nuts,(DIN6923, ISO4161), Hexagon domed cap nuts, DIN1587, Nylon Lock Nut(DIN982, DIN985, DIN986, ISO2982, ISO7040, ISO10511), Square Nuts, (DIN557, DIN928, DIN929), Win Nuts, ( DIN315. ASME/ANSI B18.2.2,  
ASME/ANSI B18.2.4.1M
Screws: (DIN84, DIN85, DIN963, DIN964, DIN965, DIN966, DIN7971, DIN7972, DIN7973, DIN7974, DIN7981, DIN7982, DIN7983, DIN7984, DIN7985, DIN7991, ISO7380), Wood screws, (DIN7995, DIN7996, DIN571), Drywall screws, (DIN18182), Washer series: Flat washer
(DIN125, DIN6921, SO7089), Spring Washer, (DIN127), Hexagon socket set screws(DIN913, DIN914, DIN915, DIN916, DIN551, DIN906, ISO4026, SIO4027, ISO4028, ISO4029, ISO4776). 
Looking forward to your cooperation!