For over two decades, Ganyuan Factory has focused on precision machining, specializing in the manufacture of various high-performance stainless steel spiral bolts using advanced CNC machining technology. Equipped with high-precision multi-axis CNC machine tools and advanced coordinate measuring machines, we ensure that every spiral bolt machined from stainless steel blanks meets stringent dimensional accuracy and geometric tolerance requirements from the very beginning.
We select high-quality 304, 316L, 17-4PH, and duplex stainless steel materials, and professionally manufacture high-precision stainless steel spiral bolts through CNC precision machining. Stainless steel possesses excellent strength, good machinability, and outstanding corrosion resistance. Through CNC machining and appropriate heat treatment and surface treatment processes, we achieve a balance between precision thread forming, head structure strength, and long-term anti-loosening performance, making it an ideal choice for manufacturing critical connection systems with high requirements for preload control, fatigue resistance, and reliability.
High-precision CNC turning of 304 spiral bolts Trustworthy Custom Precision Parts
Each stainless steel spiral bolt undergoes CNC precision machining to ensure a precise thread profile, accurate pitch, and a reliable head drive structure. Optimized structural design and strict tolerance control guarantee the connection reliability of the spiral bolts under heavy loads, impacts, vibrations, and alternating load conditions, effectively improving the overall operational safety and service life of the equipment.
By selecting 17-4PH precipitation-hardening stainless steel or duplex stainless steel, combined with scientific solution treatment aging and precision machining processes, CNC-machined stainless steel spiral bolts achieve micron-level precision with a thread pitch diameter accuracy ≤0.005mm, a tooth profile accuracy ≤0.01mm, and a head size tolerance ≤±0.03mm. Simultaneously, they achieve high tensile strength (≥1000MPa) and excellent toughness, withstanding long-term heavy loads and complex working conditions.
We utilize multi-axis CNC machine tools and automated production lines to ensure that every stainless steel spiral bolt meets stringent thread precision and assembly requirements. Through integrated CAD/CAM systems for machining simulation and process optimization, combined with professional stress relief, CNC precision turning, thread milling, and surface treatment processes, we achieve an optimal balance between precision thread forming, head structure, and fatigue resistance. During manufacturing, we pay particular attention to key factors such as thread pitch diameter accuracy, tooth profile, head drive groove quality, heat treatment hardness uniformity, and surface passivation effect.
We are committed to providing high-quality stainless steel spiral bolt solutions for the high-end equipment manufacturing industry through advanced material applications, CNC machining technology, and rigorous quality management. From mechanical analysis and thread parameter optimization design to CNC precision manufacturing and surface protection, every step reflects our professional pursuit of performance and reliability, providing crucial support for long equipment lifespan, low failure rate, and stable and reliable operation.
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 cnc precision.
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 precision: CNC lathes, 5-axis CNC, 4-axis CNC, stamping equipment, die-casting equipment, etc. 2.5-dimensional detection equipment 
cnc precision surface treatment
For surface treatment, our suppliers have been working with us for many years. They have rich experience and are familiar with all the quality requirements of each other. The quality is stable and more guaranteed. Such as: heat treatment, spray painting, powder coating, blackening, silver/gold plating, electrolytic polishing, nitriding, phosphating, nickel/zinc/chromium/TiCN plating, anodizing, polishing, passivation, sandblasting, galvanizing, heat treatment , hardening, laser marking, etc. according to customer requirements. Aluminum alloy surface oxidation
Packaging Details
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?
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.
