Manufactured Superior Fasteners Over 20 Years

Superior Fasteners with Every Turn

Trusted by Industry Leaders Nationwide

Our factory has been inspected and audited by Huawei, Foxconn, BYD, Gree Electric, Flextronics and other companies.

Our Workshop Environment

Precision hardware manufacturer.

Fastening solution provider

The worldwide network of partners gives you access to virtually unlimited small-volume manufacturing capabilities through one trusted partner.


Parts manufactured


Hours of monthly machined capacity,on demand


combination of material,process,finish options

Quality Certification

SOZN’s quality management system is ISO 9001:2015 certified. We also have manufacturing partners in our ecosystem with the following certifications:


ISO 9001:2015

IATF 16949:2016

Our Ordering Process


Quote Time

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


Confirm Time

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



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


Quality Control

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



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

Quality You Can See From Start To Finish

The SOZN team endure quality on your behalf, so you get the parts delivered on-time every time.

1. On-site SOZN quality engineer

2. Strick inspection for every parts

3. On-demand access to quality photos &docs


perfect order


parts send all over world

Production-Grade Quality Inspection Capabilities

SOZN offers a wide range of quality inspection service with strict QC process.

XRF material verification gun

A wide range of gauges (telescoping, bore, height, surface roughness, feeler, thread, pin)

Precision scales

Coordinate measuring machines (CMM)

Testing devices for stress, impact, hardness, mold flow index

Gauge blocks and pins

3D scanners

Profile projectors

Array of micrometers and calipers

industrial fasteners