Precision manufacturer of custom bolts and other fasteners via CNC machining
Ganyuan is a professional CNC machining factory with over 20 years of experience in manufacturing high-precision mechanical components. We specialize in CNC screw machining, utilizing advanced CNC lathes, precision milling machines, and 3D measuring instruments to ensure top-notch quality. We welcome custom orders via email and offer sample processing services.
Product Description
| Production type | Custom production and processing | Material | Stainless steel |
| Processing methods | CNC Trining Parts 5-axis CNC machining centers, grinding machines, wire cutting | Processing Equipment | CNC Trining Parts 5-axis CNC machining center, grinder, wire cutting Fine-tuning dial |
| Accuracy | ±0.02mm | Whether proofing | yes |
| Is it customized | yes | Proofing time | 7-15 days |
| OEM/ODM | OEM ODM CNC machining service | surface treatment | Electroplating, zinc plating, chrome plating, nickel plating, oxidation, hard oxidation |
| Origin | Dongguan, China | Quotations | FOB |
| Business Type: | Manufacturer/Factory & Trading Company | Main Products: | CNC parts; Machining parts; |
| Management System Certification: | ISO 9001:2015 | productivity | 100000 |
Our screws are primarily made from high-grade stainless steel, including:
304 stainless steel – Excellent corrosion resistance for general applications.
316 stainless steel – Excellent resistance to harsh environments, ideal for the marine and chemical industries.
316Ti stainless steel – Enhanced heat and corrosion resistance for extreme conditions.
Key Material Properties
Corrosion Resistance
Stainless steel screws are rust- and oxidation-resistant, making them ideal for the medical, food processing, and chemical industries.
They ensure long-term durability even in humid or corrosive environments.
High Mechanical Strength
They withstand heavy loads and high stresses, maintaining structural integrity in demanding applications.
Suitable for automotive, aerospace, and industrial machinery screws.
Compliant with safety and hygiene standards
Non-toxic and environmentally friendly, meeting the strict safety standards for food-grade and medical devices.
Smooth surface prevents bacterial growth and ensures cleanliness.

Precision manufacturer of custom bolts and other fasteners via CNC machining
CNC Machining Process and Challenges of Screws
We use CNC lathes to produce screws with extremely tight tolerances (±0.01mm). This method enables:
Complex thread designs (metric, trapezoidal, ACME, etc.).
High repeatability ensures consistent quality during mass production.
Machining Challenges and Solutions
Tool Wear Resistance – Stainless steel is more difficult to machine than ordinary steel, requiring high-speed steel (HSS) or carbide tools.
Cooling and Lubrication – Using the appropriate coolant prevents overheating and ensures smooth cutting.
Thread Accuracy – Advanced CNC programming ensures precise thread pitch and depth for a perfect screw fit.
Advantages of Our CNC Machined Screws
Durability – Long service life reduces replacement costs.
Precision Fit – Ensures seamless assembly within mechanical systems. Aesthetic Finish – Polished or coated surfaces enhance visual appeal.
Customization – Custom sizes, threads, and head shapes (hexagonal, cross-recessed, slotted, etc.) are available.
Applications of CNC Machined Screws
Our screws are widely used in:
Automotive and Aerospace – High-strength fasteners for engines and structural components.
Medical Devices – Sterile, corrosion-resistant screws for implants and devices.
Electronics – Miniature screws for circuit boards and housings.
Industrial Machinery – Heavy-duty screws for assembly lines and robotic systems.
Why Choose Ganyuan for CNC Screw Machining?
Over 10 Years of Professional Experience – Reliable Precision Manufacturing.
Advanced CNC Equipment – Ensures Accuracy and Efficiency.
Strict Quality Control – 3D Inspection Ensures Defect-Free Screws.
Customized Solutions – From Prototype to Mass Production.
We are a manufacturer integrating industry and trade. We have more than 20 years of experience in production technology. We are located in Dongguan City, Guangdong Province, China. We have advanced high-end professional production and processing technology, and are committed to innovative R&D and production. After years of market tempering and exploration, it has high-quality technical management personnel, experienced designers, R&D personnel and a perfect company management system.
5-axis CNC workshop
Our factory has a plant area of about 2,000 square meters and masters core processing technologies. It has high-end precision production equipment: CNC lathes, 5-axis CNC, 4-axis CNC, stamping equipment, die-casting equipment, etc.

Auxiliary production equipment: electroplating, anodizing, hard anodizing and surface treatment. We have complete testing equipment: sophisticated three-dimensional testing, two-dimensional testing, hardness tester, height meter, projector and other conventional testing equipment. If you are interested in our products, please contact me and I will provide the best price support and quality service.
Product Packaging
Packaging Details
- Commercial packaging: 1pc/plastic bag + color box +carton + pallet;
- Industrial packaging: (1). plastic tube + carton + pallet; (2). plastic bag + kraft paper + carton + pallet;
- According to the requirement of customer.

FAQ
Q1: Where can I get product & price information?
A1: Send us an inquiry e-mail, we will contact you once we received your mail.
Q2: How long will I get the sample?
A2: Depends on your specific items, within 3-7 days generally.
Q3: What kinds of information do you need for a quote?
A3: Kindly please provide the product drawings in PDF, if provide in STEP or IGS will be better.
Q4: What are the payment terms?
A4: We accept 50% as a payment deposit, when the goods are prepared, we shoot photos or videos for your check, and then you can pay the balance. For small quantities, we accept Paypal, the commission will be added to the order. For big amounts, T/T is preferred.
Q5: How to deliver the goods?
A5: We deliver the products by courier company.
Q6: Are you a trading company or factory?
A6: We are factory direct with 17 experienced engineers and more than 50 employees as well approximate 3,000m2 workshop area.
Q7: What shall we do if we don’t have drawings?
A7: Please send your sample to our factory, then we can copy and provide you better solutions. If send us pictures or drafts with dimensions(Length, Height, Width), CAD or 3D file will be made for you.
Q8: Can we get some samples before mass production?
A8: Absolutely yes.
Q9: Will my drawings be safe after sending them to you?
A9: Yes, we will keep them well and won’t release them to the third party without your permission.
Q10: Is it possible to know the operation status of my products without visiting your company?
A10: We will offer a detailed production schedule and send weekly reports with digital pictures and videos which show the machining progress.
Q11: If you make poor quality goods, will you refund?
A11: In fact, we won’t take risks to produce poor-quality products. Meanwhile, we manufacture good quality products till you are satisfied.