About Us

• Ningbo Long I Metal Industry Co., Ltd, glad to introduce ourselves Long I Metal Industry Co., Ltd. As one of the leading successful and experienced professional Manufacturer in stainless steel fastenerts special in stainless steel nuts in China. Long I Metal Industry Co., Ltd. Was founded in 1994. The company received ISO 9002 accreditation in 1998 and GB / T 19001-2000 idt ISO9001: 2000 in 2005,
  And has strict quality control procedures, have won good reputation by offering the best quality and delivery on time in global Market, Japan, European, American and local market
  The company is capitalized USD 8, 000, 000 with a factory 15, 000 sqm. Major production facilities include 13 sets forming machines of 13B to 41B, 13 sets of tapping machines. Major products include stainless steel Nuts / Bolts / Screw / Washer
  Rods / Studs and other special parts as customers sample or drawing, size from M3 to M24 (3 / 16" to 1") and other size bigger than M24, mainly made of 304, 316 (A2, A4) stainless steel wire rod, with monthly capacity of 400 to 500 tons of nuts.
  Our main products as follows:
  Stainless steel Nuts
  Shape: Hexagon Nuts, Nylon insert locking (stop) Nuts, all metal insert
  Locking Nuts, Domed Cap Nuts, Acorn Cap Nuts, Flange Nuts,
  Square Nuts, Weld Nuts, Round Nuts, Lifting Eye Nuts, Slotted
  And Castle Nuts, Chain roller, Other special Nuts or machine
  Parts upon Customer's request and their drawing or sample;
  DIN934, DIN439, UNI5587, DIN985, DIN982, DIN1587, DIN6923,
  DIN929, DIN928, DIN562, DIN557, DIN935, DIN981, DIN315,
  DIN6925, DIN980, DIN936, ISO4032, ISO8673, ISO4035,
  ISO4161, ISO7040, ISO10511, ISO7719, ISO7042, ISO2982,
  ISO7035, JIS B 1181, JIS B 1196, JIS B 1190, JIS B 1163,
  U-Nuts, Conical Nuts, ISO, ANSI / ASME, IF, NM, Ne, NTM, NTE
  Stainless steel Washer
  Shape: Washer, Square Washer, Spring Lock Washer, Wave Spring lock Washer, Internal / External Teeth Lock Washer, Retaining Rings For Bore / Shafts, Other special Washers or likely Shaped Parts upon Customer's request and their drawing or sample;
  DIN125, DIN433, DIN9021, DIN440, DIN7349, DIN436, DIN127,
  DIN137-B, DIN128-A, DIN6797, DIN6798, ISO97. 1, ISO848,
  ISO96, ISO5287, ISO93, ISO859, ISO955, ISO7245, ISO861. 1 / 2,
  ISO862. 1 / 2, ISO893, ISO894
  Stainless steel Bolts, Screws, Rods and Studs
  Shape: Hex Bolts, Round Head Square Neck Carriage Bolts, Hex Socket
  Cap Screws, Hex Socket Set Screws, Screws, Tapping Screws,
  Wood Screws, Lifting Eye Bolts, Eye Bolt Form B, Masonary
  Bolts, U-Bolts, Rods, Studs, Welding Studs, Other likely Shaped
  Parts upon Customer's request and their drawing or sample;
  DIN931, DIN933, DIN603, DIN912, DIN913, DIN916, DIN84,
  DIN85, DIN7985, DIN965, DIN966, DIN7981, DIN7982, DIN571,
  DIN580, DIN444, DIN529, DIN3570, DIN975, DIN976, IN938,
  DIN939 AND SIMILAR ISO
  Special Parts: According customer's sample or drawing.
  Specification: DIN, JIS, ANSI / ASME (IFI) , BS
  Thread: METRIC (M, MF) , Whitworth (BSW, BSF) , Unified (UNC, UNF)
  Material: Stainless Steel SUS304 / 316, A2 / A4, SUS302HQ, SUS304,
  SUS304M, SUS316, SUS 316L
  Size: M3 to M24 (No. 6 to 1") , Bigger than M24 (1") by hot forged
  Condition: Cold Formed and Passivated or S-Coating# 3
  Main Market: Japan, European, American and local market
  Please feel free to contact with us if you want to know any other information about our products and company. We wish to enter into establish business relations with you for the supply of our products and look forward to the opportunity of being of service to you.