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Premium Fasteners for Global Industries

High-strength hex bolts, nuts, washers & customized fasteners. ISO9001, CE & ISO13485 certified. Trusted since 2011.

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Chang Lan Factory

About Chang Lan

Chang Lan Fastener Manufacturing Co., Ltd. is a leading manufacturer of Yongnian-standard fasteners. Established in 2011, we evolved from Chang He Fastener Factory and have grown into a trusted name in the global fastener industry.

With over 3,000 square meters of production space and certifications including CE, ISO9001, and ISO13485, we deliver top-quality fasteners to clients across construction, automotive, aerospace, and industrial sectors.

Our team brings rich experience in foreign trade export and provides intimate after-sales service to ensure customer satisfaction at every step.

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Why Choose HD Changlan?

We combine advanced manufacturing, strict quality control, and customer-first service to deliver reliable fastening solutions worldwide.

Certified Quality

CE, ISO9001, and ISO13485 certified manufacturing processes ensure every fastener meets international standards.

3000+ m² Facility

Large-scale production capacity ensures fast turnaround and bulk order fulfillment without compromising quality.

Custom Solutions

From hex sleeve geckos to wedge anchors, we offer full customization to meet your project specifications.

Global Export Expertise

Years of experience in foreign trade ensure smooth logistics, documentation, and on-time delivery worldwide.

Our Products

Explore our wide range of high-strength fasteners, including hex bolts, nuts, washers, and customized solutions for industrial and construction applications.

Hex Bolt DIN931

Hexagon Head Bolt DIN931

Carbon Steel Grade 8.8/10.9, ISO4014 standard, hot dip galvanized. Ideal for steel structures and construction.

  • • Material: Carbon Steel
  • • Grade: 8.8 / 10.9
  • • Finish: Hot Dip Galvanized
  • • Standard: DIN931/ISO4014
Chemical Anchor Bolt

Chemical Anchor Bolt

High-strength anchoring solution for concrete and masonry. Zinc plated or hot-dip galvanized options.

  • • Size: M16 and above
  • • Finish: Zinc Plated / HDG
  • • Application: Structural Fixing
  • • Custom lengths available
Hex Flange Nut

Hex Flange Nut with Nylon Lock

DIN934 standard, white zinc plated. Prevents loosening under vibration. Perfect for automotive and machinery.

  • • Type: Nylon Insert Lock Nut
  • • Finish: White Zinc Plated
  • • Standard: DIN934
  • • Anti-vibration design
Stud Bolt

Double End Stud Bolt

High tensile strength for flange connections in pipelines, pressure vessels, and industrial equipment.

  • • Grade: 4.8 to 12.9
  • • Material: Carbon / Alloy Steel
  • • Finish: Plain, Zinc, HDG
  • • Custom threading available
Carriage Bolt

Carriage Bolt DIN603

Square neck design prevents rotation. Hot dip galvanized for outdoor and structural use.

  • • Head: Round with Square Neck
  • • Finish: Hot Dip Galvanized
  • • Standard: DIN603
  • • Sizes: M6 to M20
Welding Stud

Carbon Steel Welding Stud

DIN 928 standard, square weld nut base. Used in steel bridges and structural frameworks.

  • • Type: High Tensile
  • • Base: Square Weld Nut
  • • Application: Steel Structures
  • • Custom lengths & tips
Spring Washer

DIN128 Spring Washer

Zinc plated carbon steel. Prevents loosening due to vibration. High strength and durability.

  • • Standard: DIN128
  • • Material: Carbon Steel
  • • Finish: Zinc Plated
  • • Sizes: M3 to M30
Rivet Nut

Carbon Steel Rivet Nut

Flat head design for blind hole applications. Ideal for sheet metal and lightweight structures.

  • • Type: Blind Rivet Nut
  • • Head: Flat
  • • Material: Carbon Steel
  • • Internal Thread: M4 to M10
View All Products
2011
Founded
3000+
m² Production Area
50+
Countries Served
1000+
Custom Projects

Frequently Asked Questions

What materials do you use for your fasteners?

We manufacture fasteners from carbon steel, alloy steel, and stainless steel (grades A2 and A4). Material selection depends on application, strength, and corrosion resistance requirements.

Can you produce custom fasteners?

Yes, we offer full customization including size, thread, head type, finish, and packaging. Our team works closely with clients to meet exact specifications.

What certifications do you hold?

We are certified under ISO9001, ISO13485, and CE standards. Our quality management system ensures consistent product reliability and compliance.

What is your minimum order quantity (MOQ)?

MOQ varies by product type and customization level. For standard items, MOQ starts at 1,000 pieces. Contact us for specific requirements.

How do you ensure quality control?

We conduct raw material inspection, in-process checks, and final product testing including tensile strength, hardness, and coating thickness verification.

Get in Touch

Reach out for quotes, technical support, or custom fastener solutions. We respond within 24 hours.

Phone

15933306969

0310-6738666

Email

sales10@hdchanglanfastener.com

gina64913@gmail.com

Address

No. 39-40, Building 8, West District of Standard Parts Industry City, Yongnian District, Handan City, China

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