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Ningbo Bolts Hardware Co., Ltd is a leading manufacturer and exporter of high-performance bolts, nuts, washers, and specialty fasteners. With over 15 years of expertise, we serve critical sectors including Oil & Gas, Aerospace, Marine, Power Generation, and Industrial Machinery.
Ningbo Bolts Hardware Co., Ltd is a leading fasteners (bolts and nuts) manufacturer & exporter located in Ningbo, China. We have been engaged in fastener manufacturing for over 15 years, delivering high-quality products to global markets.
Our fasteners are widely used in Military & Defense, Aerospace, Transportation, Oil & Gas, Steam, Wind, Solar, and all power & energy generation utilities, marine construction, steel fabrication, and high-rise buildings.
Precision-engineered fasteners built for extreme environments. From high-temperature alloys to corrosion-resistant duplex materials, our product line meets international standards and industrial demands.
High-strength alloy steel stud bolt for high-pressure and high-temperature service. ASTM A193 Grade B7, suitable for flange connections in oil & gas pipelines.
Austenitic stainless steel stud bolt, ASTM A193 Grade B8, ideal for cryogenic and corrosive environments. Full solution annealed and carbide solution treated.
High-temperature alloy hex bolt per ASTM A453 Grade 660 (Inconel 718). Designed for turbine engines, nuclear reactors, and aerospace applications.
Stainless steel stud bolt per DIN 975 standard. Made from AISI 304, excellent corrosion resistance for general industrial and architectural applications.
2205 and 2507 duplex stainless steel bolts and nuts. High strength and superior resistance to chloride stress corrosion cracking. Ideal for offshore and desalination plants.
High-performance nickel-molybdenum-chromium alloys (C-276, C-22, B-2). Resistant to pitting, crevice corrosion, and oxidizing agents in aggressive chemical environments.
Heavy-duty forged bolts designed for jaw and cone crushers. High tensile strength and wear resistance for mining and aggregate processing equipment.
We manufacture custom fasteners to your exact specifications — material, size, thread, coating, and certification. Prototype to mass production support.
Engineered for extreme pressure, temperature, and corrosive environments across critical industries.
ISO 9001 certified manufacturing with full traceability, material test reports, and third-party inspections.
Trusted by clients in over 50 countries. Fast shipping and reliable logistics partnerships worldwide.
From prototype to production, we deliver custom fasteners tailored to your engineering requirements.
We manufacture fasteners in carbon steel, alloy steel, stainless steel (304, 316, 310S, 904L), duplex (2205, 2507), nickel alloys (Inconel, Monel, Hastelloy), and high-temperature alloys (A453 660).
Yes, we specialize in custom bolt and nut fabrication. Provide your drawings, specifications, or samples, and we’ll manufacture to your exact requirements with full certification.
Our manufacturing is ISO 9001 certified. We provide Material Test Reports (MTR), PMI reports, and can comply with NACE, API, ASME, and other international standards.
Visit bolts-nut.com and use the inquiry form, or contact us directly via email or WhatsApp. Provide product specifications, quantity, and material requirements for a fast response.
For inquiries, quotes, or technical support, reach out to our team. We respond within 24 hours.
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