- Ningbo Zhongli bolts manufacturing Co., Ltd. +86-574-86587617
- tan@nbzyl.com
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High-strength threaded metal studs and rods โ engineered to meet Brazil's ABNT and international standards
Understanding Brazil's industrial landscape and fastener demand across key sectors
Brazil is Latin America's largest economy and one of the world's top consumers of industrial fasteners. With a booming construction sector, expanding oil & gas infrastructure (led by Petrobras), and a growing automotive and heavy machinery industry, the demand for high-quality double end stud bolts has surged significantly in recent years.
Brazil's offshore pre-salt oil fields (operated by Petrobras in the Santos and Campos basins) demand ASTM A193 B7 double end stud bolts for high-pressure pipeline flanges, wellhead assemblies, and subsea equipment. These studs must withstand extreme pressure, corrosive seawater, and temperature fluctuations.
Brazil's ongoing infrastructure investment โ including highways, bridges, metro systems in Sรฃo Paulo and Rio de Janeiro, and the national PAC program โ relies heavily on structural double end studs for steel connections, precast concrete assemblies, and bridge expansion joints.
The ABC Paulista industrial corridor hosts major automakers including Volkswagen, General Motors, and Toyota. Double end threaded studs are critical components in engine mounting, transmission housings, and chassis assembly โ with strict tolerance requirements aligned to DIN and ANSI standards.
Brazil's hydroelectric plants (Itaipu, Belo Monte) and growing wind energy parks in the Northeast region require heavy-duty double end studs for turbine assembly, generator mounting, and transformer connections. The renewable energy boom is driving new fastener procurement cycles.
Brazil is the world's top exporter of soybeans, beef, and sugar. Agricultural machinery manufacturers (such as AGCO and CNH Industrial, operating locally) use double end stud bolts extensively in harvesters, tractors, and processing equipment built for demanding field conditions.
The Port of Santos โ the largest in Latin America โ and Brazil's shipbuilding yards in Rio de Janeiro and Santa Catarina require marine-grade double end studs with hot-dip galvanized or black oxide finishes for corrosion resistance in high-humidity coastal environments.
Ningbo Zhongli Bolts Manufacturing Co., Ltd. founded in 2003, is a professional manufacturer of high-strength fasteners in different specifications for various models, which is covering an area of about 10,000 square meters, registered capital of 1,500,000 RMB, with the total annual productivity of 8,000 tons per year. The company has set up several sales branches in different provinces in China.
Meanwhile, the company's products are exported to Europe, USA, Middle East, Africa, Southeast Asia and other regions โ and now proudly serving the growing Brazil market. The company has strong technical ability, complete testing equipments and a variety of fully automatic multi-station cold and hot heading machines, so as to provide you with reliable and high quality products.
Full-specification threaded studs meeting DIN, ASTM, ANSI, ISO and ABNT-compatible standards for Brazil
Our main products under the ZYL brand include structural hex bolts ASTM A325 type 1, A490, hex head bolts DIN931, DIN933, EN14399, DIN6914, ISO4014, ISO4017 Gr8.8 Gr10.9 Gr12.9, ANSI B18.2.1 UNC and UNF Gr5, Gr8, fine pitch hex bolts DIN960, DIN961 Gr8.8 Gr10.9 Gr12.9, hex socket cap screws DIN912, ISO4762 Gr8.8 Gr10.9 Gr12.9 with surface Black, Zinc plated, Hot dip galvanized. Diameters from M10 to M48, length no limited. Hex Flange bolts DIN6921 Gr8.8 Gr10.9 with serration, thread rod A193 B7 long sizes and short sizes with 2H nuts, stud bolts. We also supply hex nuts DIN934, DIN6915, plain washers DIN125, DIN126, DIN6916, spring washers DIN127 with Black, Zinc plated and Hot dip galvanized surface.
Our physical and mechanical test results reach ISO898-1 for bolts and ISO898-2 for nuts. Through scientific management, Ningbo Zhongli Bolts Manufacturing Co., Ltd. obtained ISO9001 certificate of Quality Management System.
| Product Type | Standard | Grade / Material | Diameter Range | Surface Treatment |
|---|---|---|---|---|
| Double End Stud Bolt | ASTM A193 B7 | Alloy Steel / Chrome-Moly | M10 โ M48 | Black / Plain / HDG |
| Double Headed Bolt | DIN939 / DIN938 | Gr 8.8 / 10.9 / 12.9 | M10 โ M36 | Zinc Plated / Black |
| Threaded Rod (B7) | ASTM A193 | B7 Alloy Steel | 1/4" โ 2" | Black Oxide |
| OEM Black Double Stud | Custom / ANSI | Gr5 / Gr8 / 10.9 | M12 โ M42 | Black Phosphate |
| Hex Head Bolt | DIN931 / DIN933 | Gr8.8 / Gr10.9 / Gr12.9 | M10 โ M48 | HDG / Zinc / Black |
Key drivers shaping fastener demand across Brazilian industries
Petrobras's USD 102 billion 5-year investment plan (2024โ2028) in pre-salt deepwater exploration is creating massive demand for ASTM A193 B7 double end stud bolts used in subsea wellheads, risers, and high-pressure flange connections. Corrosion-resistant grades are particularly sought after.
Brazil added over 5 GW of wind capacity in 2023 alone, with major wind parks in Cearรก, Rio Grande do Norte, and Bahia. Each wind turbine requires thousands of high-grade double end studs for tower flange connections, nacelle assembly, and foundation anchor bolts.
Brazil's government is promoting industrial policy to reduce import dependence, but high-quality precision fasteners still rely heavily on imports from China and Europe. Chinese manufacturers offering competitive pricing, ISO certification, and fast delivery are gaining market share from traditional European suppliers.
Vale's iron ore operations in Parรก and Minas Gerais, and the emerging lithium mining boom in Minas Gerais, require heavy-duty double end studs for crushing equipment, conveyor systems, and processing plant piping connections โ driving sustained fastener procurement volumes.
Brazilian industrial buyers are increasingly requiring digital material certifications (MTC), third-party inspection reports, and QR-coded traceability on fastener batches. Suppliers who offer complete documentation packages โ including mill certificates and hardness test reports โ gain significant competitive advantage.
Brazil's social housing program "Minha Casa Minha Vida" is driving large-scale residential construction, requiring structural fasteners including double end studs for prefabricated concrete panels, steel frame connections, and modular building systems across all major Brazilian states.
Precision manufacturing from raw material to final inspection โ every step quality-controlled
State-of-the-art manufacturing facilities with fully automatic multi-station cold and hot heading machines
Our best-selling fastener products trusted by Brazilian industrial buyers
Stud Bolts A193 B7 Black
Hex Nuts All Series
Hexagon Socket Cap Screws DIN912 12.9
Flat & Spring Washers Galvanized
High-Strength Hex Bolts Gr8.8โ12.9
Hex Bolt DIN931 Gr8.8 Zinc Plated
Hex Head Bolt UNC UNF GR5 GR8
Heavy Hex Bolts ASTM A325
ASTM A193 B7 Stud Bolt Threaded Bars
Hexagonal Socket Cap Screws Full Series
Zinc Plated High-Strength Hex Bolts
Stud Bolts A193 B7 Black
Hex Nuts All Series
Hexagon Socket Cap Screws DIN912 12.9
Flat & Spring Washers Galvanized
High-Strength Hex Bolts Gr8.8โ12.9
Hex Bolt DIN931 Gr8.8 Zinc Plated
Hex Head Bolt UNC UNF GR5 GR8
Heavy Hex Bolts ASTM A325
ASTM A193 B7 Stud Bolt Threaded Bars
Hexagonal Socket Cap Screws Full Series
Zinc Plated High-Strength Hex Bolts
Why Brazilian buyers choose Zhongli Bolts as their trusted double end stud supplier
A Professional Sales and Technical Team with More Than 20 Years History.
We Have Our Own Testing Equipment and Laboratory, Our Products Have Initial Inspection, Patrol Inspection, And Final Inspection.
Our Factory Has Its Own Cold Forged, Hot Forged, And Heat Treatment Equipment.
Standard Fasteners in Stock, Non-standard Fasteners Can Be Customized.
We Have Passed ISO 9001, EN 15048, EN 14399, AD2000 and CE Certificates.
We hope to establish business relationship with all over the world, and our business can bring in mutual benefits for both parties.
We Can Design Packaging According to the Requirements of Each Customer.
We Supply Samples for Free.
Delivery Time Will Be According to Customer's Request.
Fast reply through email tan@nbzyl.com or wechat and whatsapp: 008615257861940.
Our supplied goods will be according to all kinds of standard such as DIN, ANSI, GB etc.
We Offer Very Competitive Price with Our Small Profits.
EN 15048 CE Certification ยท EN14399 CE Certification ยท ISO9001 Certificate
Ningbo Zhongli Bolts Manufacturing Co., Ltd. founded in 2003, is a professional manufacturer of high-strength fasteners in different specifications for various models, which covers an area of about 10,000 square meters, registered capital of 1,500,000 RMB, with the total annual productivity of 8,000 tons per year. The company has set up several sales branches in different provinces in China.
We hope to establish business relationship with all over the world โ especially with our valued partners in Brazil โ and our business can bring in mutual benefits for both parties.
Read MoreGrasp first-hand information โ what our global customers say about our double end studs
Contact our team today for competitive wholesale pricing, free samples, and fast delivery to Brazil. Email: tan@nbzyl.com | WhatsApp: +86 152 5786 1940
Get a Free Quote NowExplore our complete wholesale range of double end threaded stud bolts โ factory direct pricing for Brazilian importers
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