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Precision Fastener Solutions for Global Industries

Manufacture of high-performance brass, copper, and steel fasteners including bolts, nuts, washers, anchors, and custom OEM parts. ISO9001 & CE certified with over 15 years of export experience.

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About Custom Fastener Sol

CustomFastenerSol is a trusted extension of Qingdao Donsen International Trading Co., Ltd — a leading fasteners manufacturing company based in Qingdao, China. Established in 2015 by a team of professionals with deep industry roots since 2008, we specialize in the production and global distribution of premium fastening solutions.

Our expertise spans brass fasteners, industrial bolts, chemical anchors, die-forged components, and custom-made OEM parts tailored to meet exact client specifications. With over 3,000 square meters of production space and certifications including CE, ISO9001, and ISO13485, we ensure every product meets the highest standards of quality and reliability.

We serve clients across construction, automotive, marine, electronics, and infrastructure sectors with responsive service and technical support.

Brass Lock Nut Industrial Fasteners

Why Choose Us?

We combine advanced manufacturing with global logistics and customer-first values.

Certified Quality

CE, ISO9001, and ISO13485 certified manufacturing processes ensure consistent product reliability and compliance.

3,000+ sqm Facility

Large-scale production capacity enables fast turnaround and high-volume orders without compromising quality.

Intimate After-Sales Service

Dedicated support team ensures prompt communication, technical guidance, and issue resolution.

Global Export Experience

Over a decade of experience in international trade ensures smooth logistics, documentation, and customs clearance.

Our Product Range

Engineered for strength, durability, and precision across industries.

Brass Hexagon Socket Setscrews

Brass Hexagon Socket Setscrews

Precision-machined brass setscrews with hex socket drive. Ideal for electronics and decorative applications.

Copper Flat Washer

Copper Flat Washer

High-conductivity copper washers for electrical grounding and corrosion-resistant environments.

Hexagon Weld Nuts

Hexagon Weld Nuts

Robust weldable nuts for permanent fastening in automotive and structural assemblies.

Wedge Anchors

Wedge (Drop-in) Anchors

High-strength concrete anchors for secure load-bearing installations in construction.

Brass Lock Nut

Brass Serrated Flange Nuts

Integrated washer design with locking serrations for vibration resistance.

Allthread Studs

All Thread (Black) Studs

Fully threaded studs in various grades and finishes for structural and mechanical use.

Brass Carriage Bolts

Brass Carriage Bolts

Cup square neck bolts for wood-to-metal connections with tamper-resistant design.

Custom Made Fasteners

Custom Made Fasteners

OEM/ODM services for bespoke fastener designs in brass, steel, and specialty alloys.

Hex Socket Steel Studs

Hex Socket Steel Studs

Zinc or yellow passivated studs with hex socket drive for easy installation.

Die Hot Forging Parts

Die Hot Forged Components

Custom forged parts including cams, rings, and handles in carbon or alloy steel.

Brass Full Hex Nuts

Brass Full Hex Nuts (DIN934)

Standard brass hex nuts for general-purpose fastening in corrosive environments.

Plasterboard Fixings

Plasterboard Fixings

Specialized fasteners for drywall and lightweight partition systems.

2015
Founded
15+
Years Experience
3000+
sqm Facility
50+
Global Clients

Frequently Asked Questions

What materials do you offer for fasteners?

We manufacture fasteners in brass, copper, carbon steel, alloy steel, and stainless steel. Custom materials available upon request.

Can you produce custom-designed fasteners?

Yes, we offer full OEM/ODM services. Provide your drawings or samples, and we’ll manufacture to your specifications.

What certifications do you hold?

We are certified under ISO9001, ISO13485, and CE standards, ensuring quality management and product compliance.

What is your minimum order quantity (MOQ)?

MOQ varies by product type and customization level. Contact us for specific details based on your requirements.

How do you ensure quality control?

We implement strict QC at every stage — from raw material inspection to final packaging — using advanced testing equipment.

Get in Touch

For inquiries, quotes, or technical support, reach out through the official website.

Address:
No. 13-22 Jiushui Road, Licang District, Qingdao, Shandong Province, China

Phone:
+86 186 6979 4793

Response within 24 hours guaranteed.

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