Trustworthy precision brass fasteners High-Quality CNC Parts

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.

Core Advantages and Technical Features of CNC Machining of Brass Fasteners

I. Superior Control of Geometric Accuracy and Thread Quality

1. The most significant advantage of CNC machining of brass fasteners lies in its exceptional dimensional accuracy and thread quality.

Utilizing high-precision CNC lathes and thread machining centers, the thread pitch diameter tolerance can be stably controlled within the 6g/6H standard, the pitch error ≤0.01mm/25mm, and the thread profile half-angle deviation no more than ±15 minutes.

2. The high consistency in mass production is particularly outstanding.

In the mass production of electronic component fasteners, the thread parameter dispersion of 10,000 products does not exceed 0.008mm, and the head slot or cross groove position accuracy is ±0.05mm. This consistency provides a reliable guarantee for automated assembly lines, improving the stability of assembly torque by 35%.

3. Precision machining capabilities for micro-sized fasteners showcase technological strength.

Using miniature CNC lathes and specialized cutting tools, brass screws exhibit clear and complete threads, precise head forming, and a minimum thread diameter of 0.8mm.

II. Integrated Machining of Complex Structures and Functional Features

1. CNC machining technology has transformed brass fasteners from simple screws and nuts into multifunctional integrated components.

For nuts with flanges, the flange and thread are machined in a single clamping operation, with the perpendicularity of the flange end face to the axis ≤0.02mm and the sealing groove width accuracy on the flange back ±0.02mm.

2. Precise Realization of Irregularly Shaped Fasteners

Through CNC milling and turning composite machining, the head forming accuracy is ±0.02mm. For shoulder screws used in optical instruments, the perpendicularity of the shoulder end face to the thread axis is 0.01mm, ensuring precise positioning of optical components.

3. Precision Machining of Self-Locking Structures

Nylon self-locking ring mounting grooves are machined on nuts, with a groove width accuracy of ±0.02mm and a groove bottom roughness Ra1.6μm.

III. Full Utilization of Material Properties

1. Brass materials such as H62 and H65 exhibit excellent cutting performance in CNC machining.

Cutting speeds can reach 200-400 m/min, with long tool life and a surface roughness of Ra 0.4-0.8 μm. Brass nuts for electronic connectors have smooth thread surfaces and maintain stable contact resistance even after 5000 insertions and removals.

2. Full utilization of material conductivity.

The excellent conductivity of brass, combined with precision machining, ensures that the contact resistance of grounding fasteners remains stable below 5 mΩ. Brass grounding bolts for electrical equipment ensure reliable electrical connections and guarantee equipment safety.

3. Optimization of corrosion resistance.

Brass exhibits good corrosion resistance in air and fresh water; precision machining further enhances this resistance by removing surface defects.

IV. Surface Integrity and Foundation for Subsequent Processing

1. The high-quality surface obtained through precision machining lays an ideal foundation for subsequent processing.

The surface roughness of machined surfaces can be controlled within Ra 0.4-1.6 μm, flexibly adjusted according to subsequent process requirements. 1. A surface roughness Ra of 0.8μm before nickel plating ensures a 30% increase in plating adhesion and improved plating uniformity.

2. Efficient Passivation Treatment.

By optimizing cutting parameters, a suitable surface condition for passivation can be obtained directly during the machining stage.

V. Precision Machining of Special Thread Forms

Precise Implementation of Fine-Pitch Threads. Fine-pitch threads with a pitch of 0.35-0.5mm are precisely formed through CNC machining, with a thread profile error ≤0.015mm. A fine-pitch screw for precision adjustment allows for precise axial displacement per revolution, achieving micron-level adjustment.

Precision Control of Multi-Start Threads. Precise splitting of multi-start threads is achieved through CNC indexing, with a splitting accuracy of ±0.5° and consistent lead for each thread. A double-ended threaded screw for quick loading and unloading doubles the travel per revolution, improving operational efficiency.

Innovative Machining of Non-Standard Threads. Customized thread profiles based on special requirements are flexibly achieved through CNC machining, eliminating the need for specialized tools.

With the continuous development of intelligent manufacturing and micro-machining technologies, CNC-machined brass fasteners will continue to evolve towards higher precision, miniaturization, and increased functionality.

Company Profile

    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 ​

two-dimensional testing

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

Product Packaging

Packaging Details

1. Commercial packaging: 1pc/plastic bag + color box +carton + pallet;
2. Industrial packaging: (1). plastic tube + carton + pallet; (2). plastic bag + kraft paper + carton + pallet;
3. 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?