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Premium Fasteners for Industrial Excellence

LECHI INTERNATIONAL CO., LTD – Your trusted Sino-Korean manufacturer of high-quality drywall screws, self-drilling screws, bolts, nuts, seismic bracing, and custom fasteners. Built for strength, precision, and reliability.

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8+ Years

Global Manufacturing Experience

Korea & China

Dual Production Facilities

Custom Orders

Tailored Fastener Solutions

About LECHI INTERNATIONAL

LECHI INTERNATIONAL CO., LTD is a professional Sino-Korean joint venture specializing in the manufacturing and supply of high-quality fasteners and metal components. With production facilities in both Korea and China, we deliver reliable, precision-engineered products to clients across industries.

Our core mission is to provide fully safe, durable, and high-performance fastening solutions. From standard bolts and nuts to complex non-standard parts, we ensure every product meets rigorous quality standards.

We pride ourselves on our ability to customize fasteners according to client specifications — offering flexibility, innovation, and unmatched service.

Factory Production Line

Our Product Range

From standard fasteners to custom-engineered solutions, we manufacture a wide range of high-strength, corrosion-resistant metal components.

Self-Drilling Screw

Self-Drilling Screws

High-speed penetration with integrated drill tip. Ideal for metal-to-metal and metal-to-wood applications.

  • • Sizes: ST3.5 to ST6.3
  • • Materials: Carbon Steel, Stainless Steel
  • • Coatings: Zinc, Black Oxide
Self-Tapping Screw

Self-Tapping Screws

Designed to create their own threads in pre-drilled holes. Perfect for plastic, wood, and thin metal.

  • • Type A, B, AB, and T
  • • Phillips, Slotted, or Hex Heads
  • • Corrosion-resistant coatings
Stainless Steel Bolt

Stainless Steel Bolts

A2/A4 marine-grade stainless steel bolts for high corrosion resistance in harsh environments.

  • • DIN 933, DIN 931 Standards
  • • M4 to M30 Diameter Range
  • • Full thread or partial options
Nuts

Nuts

Hex, flange, lock, and cap nuts in carbon and stainless steel for secure fastening.

  • • DIN 934, DIN 985 Compliant
  • • M3 to M24 Sizes
  • • Anti-loosening & vibration-resistant
Expansion Bolt

Expansion Bolts

Anchoring solutions for concrete, brick, and masonry. High load-bearing capacity.

  • • Sleeve and wedge types
  • • M6 to M16 Sizes
  • • Galvanized and stainless options
Rigging Parts

Rigging Parts

Shackles, turnbuckles, eye bolts, and lifting hardware for industrial and construction use.

  • • Load-rated components
  • • Forged and heat-treated
  • • Safety-certified designs
Seismic Bracing

Seismic Bracing

Anti-seismic support systems for piping, ducts, and electrical conduits in high-risk zones.

  • • Earthquake-resistant design
  • • Adjustable and modular
  • • Compliant with building codes
Non-Standard Parts

Custom Non-Standard Parts

Precision-machined lathe parts, threaded rods, and bespoke fasteners per client drawings.

  • • CNC turning & milling
  • • Prototype to mass production
  • • Material: Steel, SS, Brass, Aluminum

Why Choose Spark7201?

🔧

Custom Manufacturing

We produce non-standard fasteners and parts based on your exact specifications and technical drawings.

🌏

Dual Production Bases

Factories in Korea and China ensure quality control, fast turnaround, and global logistics efficiency.

🛡️

High Durability

Our fasteners are tested for strength, corrosion resistance, and long-term performance in extreme conditions.

📦

Bulk Supply Ready

We support large-volume orders with consistent quality, competitive pricing, and on-time delivery.

8+
Years in Industry
2
Production Facilities
50+
Global Clients
100%
Quality Inspected

Frequently Asked Questions

Do you offer custom fastener manufacturing?

Yes, we specialize in custom non-standard fasteners and machined parts. Send us your drawings or samples, and we’ll produce them to your exact specifications.

What materials do you work with?

We use carbon steel, stainless steel (A2/A4), brass, aluminum, and other alloys depending on application requirements.

Are your products suitable for outdoor or marine use?

Yes, our stainless steel and galvanized fasteners are ideal for outdoor, coastal, and high-moisture environments.

Can I order small quantities for testing?

Absolutely. We support sample and trial orders before scaling to bulk production.

What certifications do you comply with?

Our products meet international standards including DIN, ISO, ANSI, and JIS. Seismic bracing complies with regional building codes.

Get in Touch

We’re here to support your fastener and metal component needs. Visit us or contact directly.

Visit Our Office

LECHI INTERNATIONAL CO., LTD

Incheon, Seo-gu, Sinhyeonwonchang-dong, 393-75, 3Dong

Korea

Phone: +82 01098208856

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