Custom Screw Manufacturer for Complex, Production-Ready Fasteners
Shi Shi Tong Metal produces custom screws for equipment manufacturers, ensuring precision through drawing review, cold heading, CNC machining, and tailored inspections.
What We Need to Review Your Project
- 2D/3D drawing or sample
- Material and surface finish
- Critical tolerances
- Estimated quantity
- Application environment
1998
Since
200+
Machines
19+
Engineers
30+
Quality Inspectors
6.2M
Pieces/Day*
*Maximum daily capacity varies according to part structure, material and production mix.
Custom Screw Manufacturing Capabilities
From non-standard and extra-long screws to titanium, shoulder and step screws, we manufacture precision fasteners for specialized industrial requirements.
Custom & Non-Standard Screws
Made-to-print custom screws with configurable head, drive, thread, and tip features for specialized industrial applications.
Explore Custom Screws
Extra-Long Screws
Custom long screws with length capability up to 2,000 mm, ensuring straightness and stability for demanding equipment.
Explore Extra-Long Screws
Titanium Screws
Lightweight, corrosion-resistant custom titanium screws developed for specific material grades and operating environments.
Shoulder & Step Screws
Precision shoulder, stepped, and grooved screws combining cold heading and CNC secondary machining for tight tolerances.
Custom Screw Design Options
Choose materials and design features to match your assembly, performance, durability and application requirements.
Materials
Material selection is reviewed together with forming difficulty, strength, corrosion resistance, finish compatibility and production quantity.
From Drawing to Repeatable Production
A structured engineering process takes your custom screw from drawing review and DFM to sampling, production and quality control.
Engineering Workflow
Drawing Review
Review drawings, samples, assembly conditions and functional requirements.
DFM & Material Evaluation
Evaluate structure, tolerances, material, strength and surface treatment.
Process & Tooling Planning
Plan cold heading, thread rolling, CNC machining and supporting processes.
Sample Validation
Produce and inspect samples for customer validation.
Mass Production & Quality Control
Control dimensions, appearance, materials and batch consistency.
Cold Heading + CNC Secondary Machining
Quality Control & Documentation
Supported by more than 30 quality inspection personnel, dimensional inspection, material verification and project-specific testing.
Inspection and Documentation Available by Project:
- ▪ Dimensional inspection records
- ▪ Material certificates
- ▪ Thread gauge inspection
- ▪ Hardness and torque testing
- ▪ Coating thickness and salt spray testing
- ▪ RoHS/REACH-related documentation where applicable
Industries We Support
Custom fastening solutions for demanding industrial applications across energy, automation, mechanical equipment, robotics and precision technologies.
Energy Storage & Battery Systems
Motors & Industrial Automation
Hydraulic & Mechanical Equipment
Water Treatment & Corrosion-Resistant
Robotics & Precision Instruments
Machine Vision, Sensors & Optics
Proven Manufacturing Experience
See the manufacturing experience and engineering approach behind reliable custom screw development and repeatable production.
8,678+
Customers Served
~87%
Repeat Purchase Rate
80+
Countries & Regions
Extra-Long Guide Screw for Linear Module
Needed a long screw with strict straightness requirements; previous suppliers suffered from bending during heat treatment.
Adjusted material selection and implemented a vertical suspension heat treatment process followed by multi-point straightening.
Runout inspection implemented. Deliver stable batches with straightness controlled within required tolerances, eliminating assembly jamming.
Titanium Micro Shoulder Screw
Required a non-magnetic shoulder screw with tight tolerance on the shoulder diameter for a precision hinge joint.
Selected Titanium alloy. Utilized precision CNC turning instead of cold heading due to the micro size and strict concentricity requirements.
Optical profile measurement used for dimensions. Achieve smooth joint rotation in the final assembly with minimal magnetic interference.
Precision Fastener Manufacturing Excellence Since 1998
Shenzhen Shi Shi Tong Metal Products Co., Ltd. (SST) is a premier manufacturer specializing in custom non-standard screws and high-precision fasteners. With over two decades of industry expertise, we have built a reputation for solving the most complex fastening challenges for global B2B enterprises.
Operating from our state-of-the-art 48,000㎡ production base, we possess the capability to manufacture components ranging from M0.8 micro screws to 2000mm ultra-long bolts across a wide spectrum of materials including titanium, stainless steel, and carbon steel.
Quality Certifications & Test Reports
Our quality management system and independent third-party testing help verify material consistency, product safety, and manufacturing reliability for custom fastener projects.
ISO 9001 Quality Management
Quality Management System
CTI Test Reports
Third-Party Product Testing
SGS Test Reports
Independent Material Testing
Environmental Compliance Testing
Material & Environmental Testing
Incoming Material Inspection · In-Process Inspection · Dimensional Verification · Final Inspection · Traceable Quality Records
Trusted by Global Industry Leaders
With 28 years of customized manufacturing experience, we maintain transparent communication from initial technical evaluation to final delivery. Take a glimpse into our global client interactions and state-of-the-art production facilities.
Want to see our 48,000㎡ manufacturing base in person?
Upload Your Drawing for an Engineering Review
Share your drawing, material, surface finish, tolerance, application and estimated quantity. Our team will review manufacturing feasibility, tooling requirements and lead time before preparing a quotation.
Direct Contact
info@fastenbydesign.com
WhatsApp: +86 13143444311
Building 9, Tantou First Industrial Zone, Songgang Street, Bao’an District, Shenzhen, Guangdong, China
