Dongguan Lanbo Electronics Technology Co., Ltd.

Custom CNC Turned Knurled Stepped Threaded Ring

Custom CNC Turned Knurled Stepped Threaded Ring
Part No :

Custom CNC Turned Knurled Stepped Threaded Ring product parameters

We offer full custom CNC turning services for non-standard precision components. We manufacture lathe parts strictly according to your CAD drawings, or provide engineering design support and production arrangements based on your specific requirements.

Item	Details
Product Name	Custom CNC Turned Knurled Stepped Threaded Ring
Manufacturing Process	CNC lathe turning, external thread machining, knurling processing, shoulder forming, chamfering & deburring
Materials Available	6061/7075 aluminum alloy, SUS304/SUS316 stainless steel, 1018 carbon steel, brass
Surface Treatment	Natural machined finish, anodizing, passivation, nickel plating, zinc plating, sandblasting
Tolerance Standard	Inner & outer diameter tolerance: ±0.01mm; thickness & thread tolerance comply with ISO standard; surface roughness Ra 0.8~Ra3.2
Inspection Standards	Full dimensional testing by micrometer and optical comparator; thread precision, knurl uniformity & concentricity inspection; surface appearance check; FAI inspection reports available
Customization Service	Custom inner bore size, overall thickness, thread specification, knurl width & shoulder dimension; adjustable materials, tolerance grades and surface finishes; OEM & ODM drawing customization

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Detailed description

Custom CNC Turned Knurled Stepped Threaded Ring

We are a professional CNC turning manufacturer based in Dongguan. We fabricate Custom CNC Turned Knurled Stepped Threaded Rings with ±0.01mm ultra-precise tolerance strictly following customers’ 2D & 3D engineering drawings. This annular component integrates smooth inner through hole, middle external thread, stepped limiting shoulder and peripheral anti-slip knurled teeth. It is widely used as adjusting collar, locking nut and positioning spacer on precision instruments, testing equipment and automation machinery for manual adjustment, axial limit and threaded fastening. We offer complete OEM & ODM customization to fulfill diverse assembly demands for global industrial clients.

Introduction to CNC Lathe Turning Technology

CNC lathe turning is one of the most precise and efficient manufacturing methods for rotational metal components used in industrial automation and precision equipment. Using programmable multi-axis turning centers, solid metal bars are shaped through continuous cutting, facing, grooving, threading and boring operations with computer-controlled accuracy.
Compared with manual machining and traditional milling, precision CNC turning delivers consistent dimensional tolerances down to ±0.01mm, smooth surface finishes and excellent repeatability across high-volume production runs. It is widely used to produce pins, shafts, bushings, connectors and threaded components for mold tooling, electronic devices, medical equipment, automotive systems and industrial automation machinery.
With advanced multi-axis turning capabilities and secondary milling support, CNC lathe technology supports custom geometries including stepped diameters, ball heads, hex bodies and precision slots, which perfectly meets the diversified demands of precision locating components for industrial equipment.

What Is Knurled Stepped Threaded Ring & Its Industrial Application Value

A knurled stepped threaded ring is a multi-functional precision annular machined part composed of four key sections: inner hollow bore, stepped shoulder, external threaded segment and outer knurled edge.
The stepped shoulder controls assembly depth accurately; the middle external thread realizes screwing locking and position adjustment; the peripheral knurling greatly increases surface friction for easy manual twisting without extra tools; the inner through hole allows shaft penetration for sleeved installation.
In precision measuring instruments, medical devices, automated fixture systems and electronic equipment assemblies, this threaded ring acts as a core adjusting and locking part. Strict concentricity, thread accuracy and uniform knurl texture are required to prevent sliding, position deviation and thread loosening during repeated adjustment. Unqualified machining will lead to unstable adjustment accuracy and shortened service life, so custom CNC turned knurled stepped threaded rings are essential matching hardware for precision electromechanical assembly.

Custom CNC Turned Knurled Stepped Threaded Ring

We provide one-stop CNC turning customization solutions for knurled stepped threaded rings and various adjustable locking collars, serving automation equipment factories, precision instrument manufacturers and electromechanical enterprises all over the world.
Our product portfolio covers various customized annular adjustment parts: single-step knurled threaded collars, double-layer stepped locking rings, thin-wall adjusting nuts, large-diameter knurled spacer rings and special-shaped threaded adjusting sleeves tailored for equipment upgrading.
All items are manufactured via integrated CNC machining processes including lathe turning, thread cutting, knurling forming, shoulder machining, chamfering and deburring. All machining procedures and surface finishing are executed strictly in accordance with your engineering drawings. Besides separate single rings, we also supply matched gaskets and threaded shaft accessories to simplify your centralized procurement and on-site assembly work.

Key Advantages of Our CNC Turned Knurled Threaded Rings

Ultra-precise dimension & excellent concentricity

All rings are processed on multi-axis CNC lathes with whole-process dimensional monitoring. Unified inner hole size, thread pitch, step thickness and knurling size guarantee consistent adjustment and locking performance for each product, effectively eliminating assembly offset and axial wobble.

Flexible personalized structural modification & accessory matching service

On the basis of standard turning, threading and knurling forming, we support free customization of inner aperture, overall thickness, thread standard, knurl density and step height. We can also configure supporting fasteners as your assembly needs, cutting down your secondary processing workload and shortening your whole equipment development cycle.

Lightweight, rigid & durable anti-corrosion performance

We adopt premium 6061/7075 aluminum alloy, stainless steel and carbon steel as raw materials. Optional anodizing, nickel plating, passivation and other surface treatments greatly improve wear resistance, anti-rust capacity and surface texture, adapting to long-term cyclic adjustment in indoor workshop and instrument working environments.

Fully customizable structural design for exclusive requirements

We can freely adjust wall thickness, total height, thread length and knurl range according to your mechanical structure layout. Brand new non-standard irregular ring designs are acceptable for your new-generation precision equipment iteration.

Stable mass production & punctual delivery assurance

From small-batch prototype sampling to large-volume bulk orders, we enforce unified rigorous quality inspection standards. Sufficient production capacity ensures continuous stable supply, supporting long-term cooperative procurement plans of global industrial buyers.

OEM Custom Service Scope

We provide comprehensive tailor-made solutions for custom knurled stepped threaded rings and all types of precision CNC turned components. For material selection, we work with SUS304 and SUS316 stainless steel, 1018 carbon steel, 6061/7075 aluminum alloy, as well as brass, all available in a wide range of bar diameters to match your design specifications.
On component customization, our manufacturing scope covers knurled locating pins, dowel pins, shoulder pins, alignment pins, stepped shafts, and virtually any custom precision turned parts based on your unique requirements. For surface finishing, customers can choose from passivation, electropolishing, zinc and nickel plating, black oxide, anodizing, sandblasting and mechanical polishing to meet specific corrosion resistance and appearance needs.
In terms of service mode, we supply both individual precision turned parts and kitted pre-assembled locating components according to your production workflow. For custom tooling and fixtures, we develop exclusive turning setups based on your engineering drawings or physical samples, with full support for small-batch prototype testing before mass production commitment.

Typical Application Scenarios

Our custom knurled stepped threaded rings are widely applied in precision testing instruments, medical equipment fittings, industrial automation assembly jigs, electronic device adjusting structures, semiconductor inspection equipment and optical instrument locking components.

Frequently Asked Questions

FAQ 1

Q: Can you produce custom CNC turned parts according to my drawings or samples?
A: Yes, we mainly focus on OEM & ODM customized precision turning services. We accept 2D files like PDF/DWG and 3D files such as STEP, IGES. You can also send physical samples for us to reverse-engineer and optimize the structure. Our engineering team will review your design and offer professional suggestions on cost saving and manufacturability (DFM) for free.

FAQ 2

Q: What kinds of metal materials can you use for CNC turning processing?
A: We support a full range of common precision machining metals, including SUS304/SUS316 stainless steel, 1018/1045 carbon steel, 6061/7075 aluminum alloy, C36000 brass, copper and titanium. We can select suitable raw materials based on your product usage, working environment, strength requirements and budget.

FAQ 3

Q: Can I get trial samples before mass production? How long is the sample lead time?
A: Trial samples are available for all customized turning orders. The sample production cycle is 3–7 working days after drawing confirmation. After you test and confirm the sample quality and dimensions, we will arrange mass production. Small batch trial orders are also acceptable if you do not need large volume at first.

FAQ 4

Q: What surface finishing options do you provide for CNC turned metal parts?
A: We offer multiple surface treatments to meet anti-rust, anti-corrosion, wear resistance and appearance demands: passivation, electropolishing, zinc plating, nickel plating, black oxide, powder coating, anodizing for aluminum, sandblasting and polishing. If your products are exported to Europe, we can provide surface treatment that complies with RoHS and REACH standards.

FAQ 5

Q: How do you control the dimensional tolerance of precision CNC turned parts?
A: Our standard tolerance for general turned parts is ±0.01mm, and ultra-precision components can achieve ±0.005mm with grinding processes. We carry out strict three-step quality inspection: IQC for raw material incoming check, IPQC for in-process production monitoring, and FQC full dimension testing before shipment. We provide inspection reports and accept third-party quality inspection as requested.

About our company

Dongguan Lanbo Electronic Technology Co., Ltd. (Brand: LAMBOOR) was established in 2010 with 15 years of experience in precision hardware manufacturing. We own a 3,000 sq.m standardized factory and employ over 100 professional technicians, acting as an integrated one-stop manufacturer specializing in custom precision hardware structural components, covering mold development, stamping, sheet metal, CNC turning, welding and dust-free assembly.

We are fully equipped with Jinfeng/Aomate stamping machines, laser cutting machines, CNC bending machines, together with complete QC testing equipment including 2D projectors, salt spray testers and tensile testers. Certified to ISO9001:2015, we hold multiple utility model patents for hardware molds.

Our products are widely applied in consumer electronics, optical communication, medical devices, automotive and new energy electrical industries, with more than 400 customized projects completed. We maintain long-term partnerships with renowned enterprises including KYOCERA, Foxconn and RICOH.

63% of our annual RMB 30 million revenue comes from overseas exports. Our self-developed progressive mold technology cuts processing costs by 80%. We support rapid prototyping and mass production, delivering stable, cost-effective customized hardware solutions for global clients.