- Ningbo Zhongli bolts manufacturing Co., Ltd. +86-574-86587617
- tan@nbzyl.com
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Hexagon Head Bolt Fine & Coarse Thread UNC＆UNF — Swiss Construction Grade
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Heavy Hexagon-Head Bolts ASTM A325 — Swiss Steel Bridge & Infrastructure
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Outer Hexagon Bolt UNC＆UNF — Swiss Industrial & Mechanical Applications
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B7 Fine Thread Hexagonal Bolt — Swiss Precision & Watchmaking Industry
View DetailsSwitzerland's advanced industrial ecosystem demands the highest quality structural fasteners. From iconic alpine rail tunnels to precision watchmaking and pharmaceutical facilities, structural bolts form the invisible backbone of Swiss engineering excellence.
Switzerland's construction sector — including the landmark Gotthard Base Tunnel, CERN facilities in Geneva, and Zurich's SBB rail expansion — relies heavily on EN14399-compliant structural bolts. High-strength hex bolts Grade 10.9 and 12.9 are standard for steel frame connections in Swiss building codes (SIA 263).
Switzerland's world-renowned watchmaking industry in the Jura Arc region (Biel/Bienne, La Chaux-de-Fonds) demands ultra-fine tolerance fasteners. Fine-thread hexagonal bolts (DIN960, DIN961) in stainless and high-alloy grades are essential for precision instrument assembly and micro-manufacturing equipment.
Swiss Federal Railways (SBB) and the Rhätische Bahn network require certified structural bolts meeting EN14399 and ISO 898-1 standards. ASTM A325 and A490 equivalent heavy hex bolts are widely used in rail bridge construction, viaducts across the Swiss Alps, and urban metro systems in Zurich and Basel.
Basel's globally significant pharmaceutical cluster (Novartis, Roche, Lonza) requires corrosion-resistant structural bolts with hot-dip galvanized or zinc-plated finishes. Thread rod A193 B7 with 2H nuts and stud bolts are critical for pressure vessel assembly, pipeline flanges, and clean-room facility construction.
Switzerland generates over 60% of its electricity from hydropower. Structural bolts compliant with EN ISO 4014/4017 Gr10.9 are used extensively in turbine assembly, dam construction, and the growing Swiss wind and solar energy sector. Hot-dip galvanized finishes ensure long-term durability in alpine environments.
Switzerland hosts world-class research institutions including CERN, ETH Zurich, and EPFL Lausanne. These facilities require specialized structural fasteners for accelerator construction, laboratory equipment, and research infrastructure — demanding certifications including ISO9001, CE marking, and AD2000 compliance.
The Swiss and broader European structural fastener market is undergoing rapid transformation driven by digitalization, sustainability mandates, and evolving engineering standards.
Switzerland's Minergie energy standard and EU Green Deal are driving demand for sustainably produced structural bolts. Hot-dip galvanized and environmentally certified fasteners are increasingly specified by Swiss architects and engineers. Manufacturers offering low-carbon production processes and recycled steel content gain competitive advantage in the Swiss market.
Swiss procurement managers now demand full digital traceability for structural fasteners — from raw material certificates to heat treatment records and final inspection reports. QR-code tagged batches, digital material test reports (MTRs), and blockchain-based supply chain documentation are becoming standard requirements for major Swiss construction projects.
The ongoing revision of EN14399 (structural bolting assemblies) and EN ISO 898-1 standards is tightening mechanical property requirements. Swiss buyers increasingly require bolts tested to ISO 898-1 for bolts and ISO 898-2 for nuts, with third-party inspection reports. CE marking under EN14399 and EN15048 is now mandatory for most Swiss public infrastructure projects.
Leading structural bolt manufacturers are investing in fully automated multi-station cold heading and hot forging equipment, AI-powered quality inspection systems, and real-time production monitoring. This aligns with Switzerland's Industry 4.0 adoption rate — one of the highest in Europe — and ensures consistent quality for precision Swiss engineering applications.
Alpine Switzerland's harsh weather conditions — including salt spray, freeze-thaw cycles, and high humidity — demand advanced corrosion protection. Beyond standard zinc plating and hot-dip galvanizing, Swiss specifiers are increasingly adopting Dacromet, Geomet, and duplex coating systems for structural bolts in exposed infrastructure applications such as mountain bridges and avalanche barriers.
While Switzerland has a tradition of local precision manufacturing, the structural fastener market increasingly sources from ISO9001-certified global manufacturers who can meet Swiss and European quality benchmarks. Chinese manufacturers holding EN14399, EN15048, AD2000, and CE certifications are gaining significant market share in Switzerland's cost-conscious construction sector.
Ningbo Zhongli Bolts Manufacturing Co., Ltd., founded in 2003, is a professional manufacturer of high-strength fasteners in different specifications for various models, covering an area of about 10,000 square meters, with a registered capital of 1,500,000 RMB and a total annual productivity of 8,000 tons per year. The company has set up several sales branches in different provinces in China.
The company's products are exported to Europe, USA, Middle East, Africa, Southeast Asia, and other regions — including Switzerland and the broader European market. With strong technical capability, complete testing equipment, and a variety of fully automatic multi-station cold and hot heading machines, Zhongli provides reliable, high-quality structural bolts that meet Swiss and European standards.
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 Black, Zinc plated, and Hot dip galvanized surfaces. Diameters from M10 to M48, length unlimited. Hex Flange bolts DIN6921 Gr8.8 Gr10.9 with serration, thread rod A193 B7 long & short sizes with 2H nuts, stud bolts, hex nuts DIN934, DIN6915, plain washers DIN125, DIN126, DIN6916, spring washers DIN127.
Physical and mechanical test results reach ISO 898-1 for bolts and ISO 898-2 for nuts. Through scientific management, Zhongli has obtained the ISO9001 Quality Management System certificate, EN 15048 CE, EN14399 CE, and AD2000 certifications.
Read More About Us
A Professional Sales and Technical Team with More Than 20 Years History serving European markets including Switzerland.
We Have Our Own Testing Equipment and Laboratory. Products Have Initial Inspection, Patrol Inspection, and Final Inspection meeting Swiss standards.
Our Factory Has Its Own Cold Forged, Hot Forged, and Heat Treatment Equipment — fully automated for consistent quality.
Standard Fasteners in Stock. Non-standard Fasteners Can Be Customized to meet specific Swiss engineering project requirements.
We Have Passed ISO 9001, EN 15048, EN 14399, AD2000 and CE Certificates — fully compliant with Swiss and EU requirements.
Every structural bolt destined for Swiss and European markets undergoes rigorous multi-stage quality inspection. Our laboratory is equipped with the latest dimensional measurement, mechanical testing, and hardness testing instruments to ensure full compliance with ISO 898-1, EN14399, and EN15048 standards.
We hope to establish business relationships with customers all over the world, including Switzerland. Our business can bring mutual benefits for both parties.
EN 15048 CE Certification, EN14399 CE Certification, ISO9001 Certificate — all essential for supplying structural bolts to the Swiss and European market.
Grasp first-hand information from our satisfied customers across Europe, Switzerland, and worldwide.
Whether you are sourcing EN14399-compliant structural bolting assemblies for a Zurich high-rise, ASTM A325 heavy hex bolts for an alpine bridge, or precision fine-thread fasteners for Swiss pharmaceutical facilities — Ningbo Zhongli Bolts Manufacturing Co., Ltd. delivers certified quality, competitive pricing, and reliable global logistics to Switzerland and across Europe.
DIN960 Hexagon Bolts ISO4014 ISO4017 Gr8.8 Gr10.9 Gr12.9 — Swiss Alpine Infrastructure
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High Tensile Fine Thread Hex Bolt DIN960 Grade 10.9 Black — Swiss Rail & Industrial
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Heavy Hex Bolts Fine & Coarse Thread UNC＆UNF — Swiss Steel Frame Construction
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Gr4.8 Heavy Hexagon-Head Bolts ASTM A325 — Swiss Bridge & Tunnel Engineering
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Hexagon Head Bolt Coarse Thread UNC UNF GR5 GR8 — Swiss Mechanical Engineering
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Hex Bolt DIN931 Grade 8.8 Zinc Plated Metric Carbon Steel Galvanized — Swiss Construction
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High-Strength Hex Head Bolts Gr8.8 10.9 12.9 — Swiss Pharmaceutical & Energy Sector
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Heavy Hexagon-Head Bolts ASTM A325 Full Series — Swiss Hydropower & Infrastructure
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