Precision Fasteners & Metal Stamping Solutions

Liaocheng Golden King Industrial Co., Limited – Your trusted partner in high-quality washers, bolts, nuts, and custom OEM metal parts. Compliant with DIN, ISO, ANSI, JIS, and GB standards.

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15+

Years Experience

8,000m²

Factory Area

2,000+

Tons/Month

50+

Countries Served

About Us

Liaocheng Golden King Industrial Co., Limited

We are a leading manufacturer specializing in the production and sales of industrial fasteners and metal stamping parts. Our factory is located in Liaocheng, a renowned hub for metal fabrication in China.

With over 15 years of industry experience, we operate a modern 8,000 square meter facility equipped with advanced production lines. We produce flat washers, spring washers, hex bolts, nuts, and custom OEM parts in compliance with international standards including DIN, ISO, ANSI, JIS, and GB.

Our monthly output exceeds 2,000 tons, serving clients across the United States, Russia, Europe, the Middle East, and domestic markets. We pride ourselves on quality, reliability, and fast delivery.

Our Products

High-precision fasteners and custom metal parts engineered for durability, performance, and global compliance.

Flat Washers

M3-M60 Zinc Plated, DIN125A & DIN9021 compliant. Ideal for load distribution and surface protection.

Zinc or Black Finish
DIN, ISO, ANSI Standards
M2.5 to M60 Sizes

Spring Washers

DIN127B Zinc Plated. Prevent loosening under vibration and dynamic loads.

High Elasticity Steel
Corrosion Resistant
Custom Spring Force

Hex Bolts

DIN933 / ISO 4017 compliant. High tensile strength carbon steel construction.

M3 to M60 Available
Zinc or Hot-Dip Galvanized
Grade 8.8 / 10.9

Hex Nuts

DIN934 standard. Precision threaded for secure fastening.

M3 to M60 Sizes
Zinc or Black Oxide
Class 6G / 8G Tolerance

Cup Washers

Factory custom cup spring washers with blue zinc plating for enhanced performance.

Custom Load Profiles
Blue Zinc Coating
High Fatigue Resistance

Metal Stamping Parts

Custom OEM stamping for industrial, automotive, and machinery applications.

Steel, Stainless, Aluminum
High Volume Production
Prototype to Mass Run

Welding Parts

Custom high-quantity welded tubing and assemblies for structural applications.

MIG/TIG/Spot Welding
CNC Fabrication
Full QA Inspection

Lifting Hooks

Carbon steel swivel hooks for safe and reliable lifting operations.

Swivel & Fixed Types
Load Rated & Tested
Galvanized Finish

Our Core Advantages

Total Solution Provider

From design and prototyping to mass production and logistics, we offer end-to-end manufacturing solutions tailored to your industrial needs.

15+ Years of Expertise

Over a decade of experience in fastener manufacturing with a skilled technical team and state-of-the-art production equipment.

8,000m² Warehouse

Large inventory capacity ensures fast fulfillment of special models and high-volume orders with minimal lead time.

Logistics Guarantee

Strategically located in Liaocheng, a central transportation hub in China, enabling fast and reliable global delivery.

24-Hour Technical Support

Our engineers provide prompt technical assistance, model selection guidance, and design support to solve your challenges.

Quality & Compliance

All products meet DIN, ISO, ANSI, JIS, GB, and other international standards with rigorous quality control and testing.

By the Numbers

15+

Years in Business

Trusted by global clients since 2007

8,000

m² Factory

Modern, ISO-compliant production facility

2,000+

Tons/Month

High-capacity output for bulk orders

50+

Countries

Exported to North America, Europe, Middle East & Asia

Frequently Asked Questions

What is the purpose of a flat washer?

Flat washers, also known as plain washers, distribute the load of a fastener, reduce friction during tightening, and protect the surface of the connected part from damage caused by the nut or bolt head.

Do you offer custom OEM manufacturing?

Yes, we specialize in OEM and ODM services. Our team can assist with design, prototyping, and mass production of custom fasteners and metal stamping parts according to your specifications.

What standards do your products comply with?

Our products meet international standards including DIN, ISO, ANSI (IFI), JIS, AS, BS, NFE, and GB. We ensure full compliance and can provide certification upon request.

What is your production capacity?

We produce over 2,000 tons of fasteners and metal parts per month. Our 8,000 square meter facility supports both small batches and large-scale orders with fast turnaround.

How do you ensure quality control?

We implement strict quality control at every stage—from raw material inspection to final product testing. Our processes include dimensional checks, tensile testing, and surface finish verification.

Get in Touch

Ready to discuss your fastener or metal stamping needs? Contact us today for a quote, technical support, or product samples.

Contact: Lucy Zhao

Phone: +86 156 2458 8298

Email: [email protected]

WhatsApp: +86 156 2458 8298

WeChat: +86 156 2458 8298

Website: www.lcgkindustrial.com

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