VLC fastener manufacturing factory overview — China leading bolts and screws producer
2006Est. Year

China's Trusted Bolts & Screws Manufacturer

VLC is a leading bolts and screws manufacturer in China. With about 20 years of expertise in fasteners production and technology, we have an annual output of 10,000 tons of bolts, studs, screws and related fasteners — specialising in hex bolts, structural bolts, and studs.

Our factory leader started the first personal-owned business in 2006, driven by a mission of becoming customers' first choice for fastener manufacturers in China. Over two decades, that mission has evolved into a world-class operation with CNC-controlled machinery, automated lathes, and rigorous quality systems.

From standard DIN/ISO specifications to bespoke engineered fasteners, VLC's vertically integrated production ensures every bolt, stud and screw meets exacting tolerances — delivered on time, every time.

⚙️ Hex Bolts 🔩 Structural Bolts 🪛 Studs 🔧 Custom Screws 📐 CNC Precision Parts
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Engineering Excellence,
Delivered Every Time

Four core pillars that make VLC the preferred fastener partner for global engineers, procurement teams, and OEM manufacturers.

🏭
Vertically Integrated Factory
From raw wire rod to finished fastener — forging, heat treatment, threading, coating and QC all under one roof, ensuring full traceability and consistent quality at every stage.
⚙️
Advanced CNC Machinery
Our production floor features multi-axis CNC lathes, automatic screw machines and computer-controlled forging presses capable of ±0.01mm tolerance on critical dimensions.
📦
10,000 Ton Annual Capacity
Massive production capacity means we accommodate large-volume orders without compromising lead times, supporting both spot orders and long-term supply agreements.
🌍
Global Export Experience
With 20 years serving customers across Europe, North America, Southeast Asia and beyond, VLC understands international standards (DIN, ISO, ASTM, SAE) and documentation requirements.

State-of-the-Art Manufacturing Floor

From CNC machining centres to high-speed automatic lathes and dedicated screw machines — our facility is engineered for volume, precision and reliability.

VLC lathe machining process — precision turning of bolts and fastener components
🔄 Lathe Process — Precision Turning Centre
VLC CNC machinery for bolt and screw production
⚙️ CNC Machinery
VLC automatic screw machine for high-volume fastener production
🪛 Screw Machine
VLC automatic lathes for continuous fastener manufacturing
🏭 Automatic Lathes
VLC production line overview — bolts and studs manufacturing
🔩 Production Line
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Core Fastener Product Lines

Engineered to DIN, ISO, ASTM and SAE standards. Available in carbon steel, alloy steel, stainless steel and special alloys — with custom specifications welcome.

🔩
Hex Bolts
Full-thread and partial-thread hex bolts from M6 to M100. Grade 4.8, 8.8, 10.9, 12.9 and ASTM A307/A325/A490. Hot-dip galvanised and plain finish available.
Structural Bolts
High-strength structural bolts for steel construction, bridges and heavy engineering. EN 14399 / ASTM F3125 compliant. Supplied with nuts and washers as complete sets.
🪛
Studs & Threaded Rod
Double-end studs, full-thread rods and tap-end studs for flanges, pressure vessels and machinery. Material grades B7, L7, B16 and metric equivalents.
🔧
CNC Precision Screws
Turned and machined screws to tight tolerances for automotive, aerospace and electronics OEMs. Custom thread forms, head styles and coatings on request.
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Certified Quality You Can Rely On

VLC's quality management system, laboratory capabilities and compliance credentials give global buyers confidence in every shipment.

🏆
ISO 9001 Quality Management
Certified ISO 9001 quality management system governing all production, inspection and delivery processes — ensuring consistent output and continuous improvement.
🔬
In-House Testing Laboratory
On-site mechanical testing including tensile, hardness (Rockwell/Vickers), proof load and salt-spray corrosion testing. Material traceability with full MTR documentation.
📋
International Standard Compliance
Products manufactured and tested to DIN, ISO, ASTM, SAE, EN and BS standards. Third-party inspection by SGS, BV and TÜV available upon request.
🌱
RoHS & Environmental Compliance
All surface coatings and plating processes are RoHS and REACH compliant — supporting customers' green procurement and sustainability reporting requirements.
Traceability & Batch Control
Every production batch is tagged and traceable from incoming steel coil to outgoing shipment, with full inspection records retained for 5 years.
🚢
Export Packaging & Logistics
Products are packed to international export standards — wooden pallets, inner poly bags, cartons with full label and documentation (CO, packing list, invoice, test report).

The VLC Difference

What separates VLC from other fastener suppliers in China — the tangible, measurable factors our customers cite most when renewing contracts.

🎯
Direct Factory Pricing
No middlemen. You deal directly with VLC's production facility, eliminating trading company mark-ups and ensuring you receive the most competitive FOB pricing in China.
⏱️
Reliable Lead Times
Standard production lead time of 15–30 days for most items. Expedited options available. Consistent on-time delivery rates above 96% backed by our dedicated logistics team.
🔍
Strict QC Before Shipment
Every order undergoes full dimensional inspection, visual check and mechanical test sampling before packing. Non-conforming product is never shipped — guaranteed.
🛠️
Custom Engineering Support
Our technical team reviews customer drawings and specifications, advising on material selection, process optimisation and cost reduction without sacrificing performance.
💬
Responsive Communication
Dedicated English-speaking account managers respond within 24 hours. Order tracking, shipping updates and proactive problem-solving — always one message away.
📈
Scalable Partnership
Whether you need 100kg for a trial order or 200 tons for an annual contract, VLC scales with your business — offering flexible MOQs and volume pricing tiers.

Fasteners Powering Industry Worldwide

VLC fasteners are specified by engineers and procurement teams across demanding industries — where failure is not an option.

🏗️
Steel Construction
High-strength structural bolt sets for commercial buildings, industrial sheds, bridges and infrastructure. Supplied to EN 14399 and ASTM F3125 specifications.
Energy & Power
Studs and flange bolts for wind turbine towers, solar mounting structures, substations and pipeline flanges — in alloy steel and stainless grades.
🚗
Automotive & Machinery
CNC-turned precision screws and fasteners for automotive assembly lines, agricultural machinery and heavy equipment — to OEM drawings and Grade 10.9 / 12.9.
🚢
Marine & Offshore
Stainless steel A4-80 and duplex fasteners for marine environments — corrosion resistant, tested to salt spray requirements, with full DNV / BV documentation.
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20
Years Experience
10,000T
Annual Output
500+
Product SKUs
50+
Export Countries

What Our Global Customers Say

Real feedback from procurement managers, engineers and distributors who rely on VLC fasteners in their projects every day.

★★★★★
VLC has been our preferred hex bolt supplier for over four years. Quality is consistently within spec, MTRs are always provided without asking, and their account team responds faster than any other Chinese supplier we've worked with.
JM
James M.
Procurement Manager — Steel Fabricator, Australia
★★★★★
We ordered Grade 10.9 structural bolts for a bridge project. VLC delivered 8 tons on time, within tolerance, with third-party test reports. Pricing was 18% below our previous supplier. We have already placed our next order.
HB
Henrik B.
Site Engineer — Infrastructure Contractor, Germany
★★★★★
The CNC precision screws VLC produced matched our drawings perfectly on the first sample run. Lead time was 22 days and the packaging was excellent. We appreciate a supplier that takes quality as seriously as we do.
SC
Sarah C.
R&D Engineer — Automotive OEM, USA

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