- Ningbo Zhongli bolts manufacturing Co., Ltd. +86-574-86587617
- tan@nbzyl.com
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Widely used in Singapore's construction, MRT infrastructure, marine, and oil & gas sectors
Understanding the local industrial landscape and fastener demand
Singapore's booming construction sector โ including HDB developments, MRT expansion, Changi Airport Terminal 5, and commercial high-rises โ demands millions of high-strength hex nuts annually. DIN934 and ISO metric hexagonal nuts are the standard specification across major contractors like Surbana Jurong and Gamuda.
As one of the world's busiest ports, Singapore's Jurong Island petrochemical complex and Sembcorp Marine shipyards require corrosion-resistant hex nuts with hot-dip galvanized or stainless-steel finishes. ASTM A194 and DIN6915 heavy hex nuts are commonly specified for offshore platform assembly and ship repair.
Singapore's power generation plants and water treatment facilities operated by SP Group and PUB rely on precision fasteners including Grade 8 and Grade 10.9 hex nuts for pipeline flanges, pump assemblies, and electrical infrastructure. Threaded rod systems with 2H heavy hex nuts are widely used in these critical utilities.
Singapore's advanced manufacturing sector โ including semiconductor fabs and precision engineering firms in Tuas and Jurong Industrial Estate โ sources small-diameter metric hex nuts (M6โM16) for machinery assembly. Fine-pitch hex nuts DIN934 in zinc-plated finish are the preferred choice for cleanroom-compatible equipment.
LTA-approved fastener specifications for Singapore's MRT and LRT networks require EN14399 structural hex nuts for rail joint connections and station steelwork. High-strength structural bolt assemblies meeting SS EN 15048 standards are mandatory for all public transport infrastructure projects.
Singapore's Green Building Masterplan and the push toward solar panel installations on HDB rooftops have created new demand for stainless steel and hot-dip galvanized hex nuts for outdoor structural mounting systems. Corrosion resistance and long service life are critical requirements for this growing segment.
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 โ including a strong and growing presence in the Singapore 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.
Read More About Us
ABOUT COMPANY 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 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.
Read moreComprehensive fastener solutions meeting international standards for Singapore buyers
From high-rise construction in Marina Bay to offshore platforms at Jurong Island, our ZYL brand fasteners meet every engineering requirement with precision and reliability.
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.
How the fastener industry is evolving to meet Singapore's future infrastructure needs
Singapore's S$100 billion infrastructure pipeline through 2030 โ encompassing Changi Airport T5, the Cross Island MRT Line, and Tuas Mega Port expansion โ is driving unprecedented demand for structural fasteners. Hex nuts meeting EN14399 and ASTM A325 standards are specified for all major steel connections, creating a sustained long-term procurement opportunity for reliable Chinese manufacturers with proven export track records.
Singapore's tropical climate โ with high humidity, salt air, and frequent rainfall โ accelerates corrosion in fastener assemblies. The market is shifting toward hot-dip galvanized (HDG) hex nuts and geomet-coated fasteners for outdoor and marine applications. Buyers increasingly specify ISO 1461-compliant galvanizing as a minimum standard, and Zhongli's HDG product line is perfectly positioned to meet this growing requirement.
Singapore's procurement managers are actively diversifying their fastener supply chains away from single-source dependency. Chinese manufacturers with ISO9001 certification, CE marking (EN15048, EN14399), and documented quality management systems are gaining preference as secondary or primary suppliers. Zhongli's comprehensive certification portfolio gives Singapore buyers the confidence to qualify us as an approved vendor.
Singapore's precision engineering and semiconductor equipment manufacturers increasingly require non-standard fastener specifications โ custom thread pitches, special alloy grades, or proprietary coating requirements. The trend toward bespoke fastener solutions is growing, and Zhongli's OEM customization capability โ supporting non-standard hex nuts from M10 to M48 โ makes us an ideal manufacturing partner for Singapore's specialized industrial buyers.
Best-selling fastener solutions for Singapore's construction and industrial market
From raw material to Singapore-ready delivery โ every step quality-controlled
State-of-the-art manufacturing facilities ensuring consistent quality for Singapore buyers
Why Singapore buyers choose Zhongli as their preferred hex nut 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.
Grasp first-hand information from our global clients
Complete metric hexagon nut range โ ready for Singapore's procurement requirements
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