Ningbo Zhenhai Dingli Fastener Screw Co., Ltd. Is specilized in high strength Tap end stud, thread rod, thread stud, stud bolt, Tap end stud, Double end stud, heavy hex bolt, structural bolt, hex bolt, set screw, hex nut, and washer, which are extensive used in oil& gas industry, petrochemical industry, power station, steelwork construction and electric& machinery industry.

Products material grade cover A193 B7/B7M/B16/B8/B8M, A320 L7/L7M, A1942H/2HM/8/8M/4/7, A325/A490 type-1, A449 type-1, A354 BC/BD, F1554 Grade. 105, A563 A/B/C/D/DH, SAE J429 grade 2/5/8, ISO 898 grade 8.8/10.9/12.9, F436, F844 and so on. We have advantage both on Quality and Service of these products, and have exported for many years.

We have our own brand " ND", and OEM service is also available. Our company had already passed the authentication of ISO9001 for many years. Advanced equipments, matrixes are used in the company. We can provide above 15000 tons per year, 90% are exported directly. Now we have won numerous national and regional awards honoring us for our quality products at competitive price.