Product Features：

1.Precision dimensions: Fully transcending the limitations of national standards (GB), American standards (ANSI), or German standards (DIN), enabling processing with extremely tight tolerances (e.g., IT6-IT7 grade) or custom step dimensions.

2.Diverse material options: High-strength alloy steel, stainless steel (304/316/630), heat-resistant steel, copper, titanium alloy, or specialized engineering plastics are available.

3.Complex geometric shapes: Supports machining of parts with oil grooves, cross holes, special irregular heads, non-standard pitches, or multi-start threads.

Product Advantages H684bd786b2614dbaa8df4c2c2a8bc222o

Perfect Match

Address special spatial layouts or load-bearing strength requirements that standard components cannot meet, thereby reducing redundant equipment design.
Long-life warranty

For specific operating conditions (such as corrosion, high temperatures, and high-frequency vibrations), the optimal material and hardness are selected, resulting in significantly superior wear resistance compared to conventional standard components.
high reliability (Hi-Rel)

Customized thread fit clearance can significantly improve the transmission accuracy of precision equipment or enhance its fatigue resistance after tightening.
One-stop delivery

We provide end-to-end closed-loop services, covering drawing review, process formulation, production processing, and surface coating.

Working principle：

Pin shaft: By inserting into the connection hole, it establishes a rigid or rotational joint within the mechanical structure. It primarily bears shear stress and radial pressure. In certain designs, the pin shaft incorporates internal oil passages for lubricating the rotating interface.
Nut: By utilizing the mechanical engagement between the internal thread and the external thread of the bolt, it converts rotational torque into axial tension force (fastening force). Non-standard nuts typically enhance their anti-loosening performance in high-vibration environments by increasing the contact area or modifying the locking mechanism (e.g., nylon locking or slotted locking).

Product Application Scenarios:

Mining and heavy machinery: excavator articulation pins, crusher connection pins, and large vibrating screen fastening nuts.
Rock wool/glass wool equipment: positioning pins in the centrifuge assembly, and corrosion-resistant fasteners for high-temperature environments.
Automated production line: rotating shafts for non-standard robotic arms, and custom-made copper nuts paired with precision lead screws.
Bridges and steel structures: The primary load-bearing components of large building structures, as well as nuts for special locking mechanisms.
Medical and food equipment: Precision positioning components made of stainless steel.

Diameter	Φ5mm – Φ500mm; M5 – M300 (Large sizes available for customization)
Material	40Cr, 42CrMo, 20CrMnTi, SUS304 45#, 35CrMo, Copper alloy, 12L14 .Customizable
Precision	±0.005 mm (cylindricity, true roundness) 6H / 4H accuracy grade

202605151154239942

To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.

Q: Are you a genuine factory?

A: We are a direct manufacturer with nearly 10 years of cnc machining parts export experience, located in Taishan District, Taian City, Shandong Province. Feel free to visit our factory.
Q: How long does a quotation take?
A: After receiving detailed information(your 2D/3D drawings), we will quote you within 8 hours. If the quote is delayed by some reasons, we will notify you.
Q: Will my drawing and product be confidential after you get it?
A: We can sign the NDA for all about your project.
Q: How can you guarantee quality?
A: Always a pre-production sample before mass production;In production, after each process is completed, 100% testing shall be carried out by the quality control department, and the test shall be passed before the next process is shipped.
Q: What's the MOQ?
A: In general 10 pcs, but can accept low quantity depend on specific project.