- Ningbo Zhongli bolts manufacturing Co., Ltd. +86-574-86587617
- tan@nbzyl.com
Leave Your Message
High-performance fastener solutions engineered for Philippine construction and industrial projects
Understanding the local industrial landscape and growing demand for high-strength fasteners
The Philippines continues to experience rapid urbanization, with major infrastructure programs such as "Build, Better, More" driving unprecedented demand for structural bolts in bridges, expressways, elevated railways, and commercial high-rise developments across Metro Manila, Cebu, and Davao.
The Philippine manufacturing sector — including shipbuilding in Subic Bay, heavy equipment assembly in Laguna and Batangas, and food processing plants in Central Luzon — relies heavily on high-tensile structural bolts conforming to ASTM A325, A490, and ISO standards for safe, durable assemblies.
Renewable energy projects — including solar farms in Pampanga and Negros, wind energy installations in Ilocos Norte, and hydroelectric plants in Mindanao — require large volumes of hot-dip galvanized structural bolts that resist the Philippines' tropical humidity and typhoon-driven corrosion challenges.
Port modernization projects at Manila, Batangas, Cagayan de Oro, and General Santos are creating significant demand for marine-grade structural fasteners. High-strength bolts with hot-dip galvanized or stainless coatings are critical for pier structures, crane installations, and container terminal frameworks.
The Philippines imports the majority of its structural bolts from China, Taiwan, and South Korea. Chinese manufacturers like Ningbo Zhongli Bolts have become preferred suppliers due to their competitive pricing, ISO-certified quality, and ability to produce large-volume custom orders in metric and imperial thread specifications.
Philippine structural engineers and contractors typically specify bolts conforming to ASTM A325 Type 1, ASTM A490, DIN 931/933, and ISO 4014/4017 standards. Compliance with the National Structural Code of the Philippines (NSCP) requires verifiable mechanical test reports and ISO9001 quality management certification from suppliers.
With over 20 years of manufacturing expertise, ISO9001, EN14399, EN15048, AD2000, and CE certifications, Ningbo Zhongli Bolts delivers ASTM A325 / A490 structural bolts, DIN 6914 heavy hex bolts, and full fastener assemblies that meet the demanding structural requirements of Philippine construction and industrial projects — from M10 to M48 diameter, with zinc-plated, black oxide, or hot-dip galvanized finishes.
Structural bolts powering the Philippines' most critical industries and infrastructure projects
ASTM A325 / A490 heavy hex bolts for steel girder connections in DPWH bridge projects and NLEX/SLEX expressway flyovers.
Grade 8.8 / 10.9 / 12.9 hex bolts for structural steel frames in BGC, Makati, and Cebu IT Park tower developments.
DIN 6914 / EN14399 structural bolt assemblies for Metro Manila subway, LRT extensions, and provincial railway projects.
Hot-dip galvanized hex bolts and threaded rods A193 B7 for solar panel mounting structures and wind turbine towers across the Visayas and Mindanao.
Full-series hex socket cap screws DIN912, stud bolts, and flange bolts for petrochemical, food processing, and semiconductor manufacturing plants.
Corrosion-resistant hot-dip galvanized structural bolts for vessel assembly and port infrastructure at Subic Bay and Cebu Shipyards.
Key developments shaping the structural fastener market in Southeast Asia's fastest-growing economy
The Philippine government's multi-trillion peso infrastructure program continues to accelerate demand for high-strength structural bolts. Projects like the Metro Manila Subway, North-South Commuter Railway, and Mindanao Railway require millions of certified structural fasteners annually.
LEED and BERDE-certified green building projects in the Philippines are driving demand for eco-friendly fasteners, including zinc-plated and hot-dip galvanized bolts with verifiable environmental compliance documentation.
Philippine structural engineers increasingly require third-party mechanical test reports, material certifications, and dimensional inspection records for structural bolt procurement — driving preference toward ISO9001-certified Chinese manufacturers.
Growing bilateral trade relations between China and the Philippines have simplified procurement of Chinese structural bolts. Philippine importers and construction companies are establishing direct factory partnerships to reduce costs and improve delivery lead times.
The Philippines' location in the Pacific typhoon belt demands structural bolts with superior tensile strength and corrosion resistance. This drives adoption of Grade 10.9 and 12.9 hot-dip galvanized bolts for coastal and high-wind-zone structures.
Philippine construction projects increasingly require custom-length bolts, special coatings, and non-standard thread configurations. Manufacturers offering flexible customization — from M10 to M48, unlimited length — gain competitive advantage in this market.
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 1500,000 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.
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.
Our main products ZYL brand fasteners 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 can 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 can reach to 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. Quality is the most important for us. We have strict production and inspection equipments to support this point.
We hope to establish business relationship with all over the world, and our business can bring in mutual benefits for both parties.
Read More About Us
From raw material to finished structural bolt — precision manufacturing at every stage
State-of-the-art manufacturing facilities producing structural bolts for global and Philippine markets
Best-selling structural fasteners for Philippine construction and industrial applications
Why Philippine buyers and global clients choose Zhongli structural bolts
A Professional Sales and Technical Team with More Than 20 Years History.
We Have Our Own Testing Equipment and Laboratory. 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 for Philippine Projects.
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.
Every structural bolt destined for Philippine construction projects undergoes rigorous multi-stage inspection to ensure compliance with ASTM, DIN, ISO, and EN standards. Our in-house laboratory provides full traceability for every batch.
EN 15048 CE Certification · EN14399 CE Certification · ISO9001 Certificate
Grasp first-hand information — what our Philippine and global clients say
Full-series high-strength fasteners — certified, customizable, and ready for Philippine project specifications
📧 Contact us for Philippine structural bolt inquiries: tan@nbzyl.com | 📱 WhatsApp / WeChat: +86 152 5786 1940
Send Email