Product Category / Services

  • Hexagonal Nuts

    Nuts for wind power Nuts for petrochemical industry ANSI/ASME/IFI nuts

  • Bolts

    Hexagon head bolts partially threaded High strength bolts Non-standard customized bolts

  • Studs

    Thread rods, full thread Double ended studs High strenth studs

  • Slotted Nuts

    Large size nuts Pressure vessel nuts High strength nuts

  • Screws

    High strength screws Socket head screws Cap screws

  • Washers

    High strength washers Flat washers, spring washers Stainless steel washers

Business Description

Ningbo Zhenhai Jilian Fastener Pieces Co. Ltd. is located near National Road 329 and Provincial Road 320, just half an hour from Beilun Port. The transportation is highly convenient.


Catering to the growing demand for high-performance fasteners, the company specializes in ANSI/ASTM, DIN, BS, ISO, GB, and JIS standards for nuts and related stud bolts. Our products are widely applied in fields such as high-strength fastening systems and petroleum pipes & valves. Most of our products are exported to Europe, America, the Middle East, and Southeast Asia, where they have earned high praise from clients for their superior quality and our strong reputation.


Driven by the enterprising spirit of "QUALITY FIRST, SERVICE FIRST, AND FRIENDSHIP FIRST," we are not afraid to tackle challenging tasks, overcome obstacles, and stand at the forefront of fierce competition. With excellent service, high-quality products, innovative management, and unity, we strive to expand the market and pursue excellence.


We warmly welcome customers to cooperate with Jilian, and together, let's achieve even greater success.


Our main products include:


A194/A 194M-12a Heavy Hex / Heavy Hex Jam / Heavy Hex Slotted Nuts


Grade: 194-2H, 2HM, 4L, 7L, 7M, A563-A, A563-C, A563-DH


Size: 5/16”-4” or M8-M100


ASTM A193/A320 Full Thread Stud


Grade: B7, B7M, B16, L7, L7M


Diameter: 5/16”-4”, M12-M100


Length: Various


SAE J995 Finish Hex Nuts, Finish Hex Jam Nuts, Finish Slotted Nuts, Finish Square Nuts


Grade: 2, 5, 8, 10, 12


Size: 5/16”-1 1/2”


DIN 934, DIN 6915, DIN 5587, DIN 936, DIN 935, ISO 4032 Hex Nuts


Grade: 8, 10, 12


Size: M8-M100


Surface finishes include: Plain, Zinc Plated Blue, Zinc Plated, Hot-Dip Galvanized, Dacromet, Black Oxide, and Chrome Plated Cr+3.