Ningbo Zhenghai Yongding Fastener Co.,Ltd.

Wemajormanufacture high strength hex bolt,thread rod, stud double-ended and other nonstandard fasteners. Under the different standards of GB, ANSI, DIN, BS, AS ISO,JIS1186and so on. The bolts grade include: 8.8, 10.9, 12.9, 14.9，A325, A490, A394, A449, etc; And the stud bolts include B7, B7M, L7, L7M B16 and L43. Our producing range: diameter: 5/16”-4”, M8-M100, ; Length: 16MM-6000MM. Our yearly throughput for bolt is 6000 Tons and for stud bolt is 10000 Tons. Now our products are widely export to America,Southeast Asia, Europe, Middle East and so on