Manufactured Superior Fasteners Over 20 Years

Superior Fasteners with Every Turn

  • 7*24
    Instant Quoting

  • 100%
    Inspections

  • ISO 9001:2015 
    Certified

  • Powerful Supply Chain

  • On-Time Global Delivery

  • Custom Parts Available

Our Products and Capabilities

SOZN offers both standard and custom fasteners in imperial and metric sizes. With strong manufacturing and flexible customization, we deliver reliable fasteners for various industries.

Standoff

Custom parts

Powerful Supply Chain

Sozn operates our own manufacturing facilities and collaborate partners across China. This strong supply network enables rapid production and scalable capacity for both standard and custom fasteners, ensuring consistent quality, competitive lead times, and reliable solutions for your projects.

700

manufacturing lines

0.01

tight tolerance

7

days lead time

SOZN are

Precision hardware manufacturer.

Fastening solution provider

0 +
Years of experience
0+
Customers
0M+
Parts manufactured
0+
Combinations of material, process, finish options

Quality You Can See From Start To Finish

At SOZN, quality is the cornerstone of our manufacturing ethos. We deploy cutting-edge expertise to ensure every fastener meets your specifications and is delivered on time.
Our team enforces uncompromising standards across all production phases,
Pre-Production: Risk mitigation through design validation and material certification (XRF analysis, RoHS compliance).
In-Process: Real-time monitoring with advanced metrology tools (CMM, 2D/3D scanners, calibrated gauges).
100% Inspection before delivery: Functional testing, dimensional verification (±0.005mm tolerance), and aesthetic evaluation.

98.9%

perfect order

100%

parts send all over world

Quality certification

Strictly following the ISO 9001 Quality Management System to demonstrate our commitment to consistently providing you with high-quality prototyping, volume production and related services.

From raw materials to final inspection, every step is documented and controlled.

ISO 9001:2015
The comprehensive quality management system shows standardized management and stable product quality

IATF 16949:2016
Demonstrates a commitment to quality, consistency, and safety in producing and delivering vehicle devices.

Material test report of your project
Ensure that the parts received every time meet the material requirements and expectations

Our Ordering Process

01

Quote Time

Send your CAD or drawings to our email and communicate your demand

02

Confirm Time

7*24 service department will confirm your part detailed specification and communicate the lead time

03

Production

We will communicate with our partner factory about the plan of producing your parts and start immediately

04

Quality Control

All the factories are our partners and we will continue to optimize for free until the parts meet your standards.

05

Delivery

We will choose the most economical and suitable shipping agent to meet your schedule and save costs

Material selection

With a diverse selection of materials tailored to meet various performance requirements, SOZN assists you in selecting the most suitable fastener solution for your application. This ensures improved durability, lower maintenance costs, and enhanced reliability across all industries you serve.

Surface finishes

Our wide range of surface treatments is designed to enhance the performance, durability, and appearance of fasteners in various environments. Whether you require corrosion resistance, improved wear performance, or specific aesthetic finishes, our solutions provide reliable protection and optimal functionality for every application.

Surface Treatment Function
Electro-galvanizing  Low cost, basic corrosion resistance, suitable for indoor or dry environments
Hot-dip galvanizing  Thick zinc layer, strong corrosion resistance, ideal for outdoor or harsh conditions
Dacromet Coating  Cr-free, eco-friendly, superior corrosion resistance; used in automotive and energy
Zinc-nickel  Excellent corrosion resistance, common in automotive, aerospace, and defense
Phosphating  Enhances lubrication and paint adhesion; used for interior parts or coated components
 Black Oxide  Improves appearance and provides mild rust protection; for indoor or low-risk use
Electrocoating  Uniform coating, strong adhesion, and corrosion resistance; widely used in automotive
Powder Coating / Painting  Decorative, protective; used for parts requiring color coding or corrosion resistance
Anodizing  Enhances corrosion resistance and hardness; allows coloring; specific to aluminum
Stainless Steel Passivation  Removes free iron, strengthens the passive layer to improve corrosion resistance

More than 60+ companies trusted SOZN

 

Let’s start talking with our engineers now