Dongguan Lanbo Electronics Technology Co., Ltd.

Custom CNC Turned Knurled Threaded Adapter Fitting

Custom CNC Turned Knurled Threaded Adapter Fitting
Part No :

Custom CNC Turned Knurled Threaded Adapter Fitting 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 Threaded Adapter Fitting
Manufacturing Process	CNC turning, external thread cutting, knurling processing, hex turning, boring, chamfering, precision deburring
Materials Available	6061‑T6 aluminum alloy, SUS304/SUS316 stainless steel, C36000 brass, carbon steel
Surface Treatment	Black anodizing, natural aluminum finish, passivation, nickel plating, zinc plating, hard anodizing
Tolerance Standard	Dimensional tolerance ±0.01mm; precise external thread tolerance; qualified knurling profile; good coaxiality between thread and outer structure
Inspection Standards	Caliper & micrometer dimension test, thread gauge inspection, knurling appearance check, geometric tolerance verification under ISO quality management system
Customization Service	Custom outer size, knurling specification, thread standard and overall dimension based on drawings or samples; support prototype trial, OEM & ODM mass‑volume orders

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Detailed description

Custom CNC Turned Knurled Threaded Adapter Fitting

Our Custom CNC Turned Knurled Threaded Adapter Fitting is a precision rotary conversion hardware component with knurled surface and external thread structure. As a professional CNC turning manufacturer based in Dongguan, we produce customized knurled threaded adapter fittings with ±0.01mm ultra‑precise tolerance strictly following customers’ 2D & 3D engineering drawings. We support full OEM & ODM customization for knurling pattern, thread specification and overall dimensions. These knurled threaded adapter fittings are widely adopted for port conversion, threaded connection and joint assembly in automation fixtures, instrument equipment and precision mechanical systems.

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, metal bars are processed through continuous cutting, facing, grooving, threading and boring with computer‑controlled accuracy.
Compared with manual machining and conventional milling, precision CNC turning achieves stable dimensional tolerance down to ±0.01mm, smooth surface quality and outstanding consistency during mass production. It is widely applied to fabricate pins, shafts, bushings, connectors and threaded parts for mold, electronics, medical, automotive and automation machinery.
Equipped with secondary milling and cutting capacity, CNC turning supports complex customized profiles including stepped cylinders, grooved structures and multi‑sided profiles, satisfying diversified precision positioning component demands for industrial equipment.

Product Definition & Industrial Value

Knurled threaded adapter fitting is a conversion machined part combining anti‑slip knurling and external thread. Knurling provides higher friction for manual or tool‑assisted tightening, while external thread realizes quick port switching. It solves industry pain points such as slippery twisting, thread mismatch and poor assembly compatibility, improving connection reliability for equipment port conversion and mechanical joint assembly.

Our Product Service

We deliver one‑stop custom CNC turning service for knurled threaded adapter fittings for global industrial equipment suppliers. Our product scope covers custom thread adapters, conversion fittings and other non‑standard rotational machined hardware. We perform turning, knurling, external thread cutting and deburring strictly based on customer engineering drawings. Value‑added services include anodizing & plating treatments, full‑dimension inspection, prototype sampling and large‑batch OEM production.

5 Core Advantages

Anti‑slip precision knurling surface

One‑step CNC knurling forms uniform tooth profile, increases surface friction force, prevents slipping during tightening and disassembly operation.

High‑precision external thread machining

Integrated turning thread cutting ensures accurate thread size, good engagement performance, avoids jamming and loose connection after assembly.

Diversified material & surface options

Aluminum, stainless steel, brass and carbon steel are optional; black anodizing and other surface treatments improve wear resistance and appearance performance.

Stable coaxiality for adapter structure

One‑clamp processing keeps good coaxiality between thread and knurled body, reduces assembly deflection and guarantees conversion fitting accuracy.

Drawing‑oriented full‑spec customization

Knurling style, thread standards and body dimension can all be customized from 2D/3D drawings or physical samples. Both small‑batch prototype verification and large‑volume mass orders are acceptable.

OEM Custom Service Range

We provide comprehensive customized solutions for custom knurled threaded adapter fittings and all kinds of precision CNC turned components. Available materials include SUS304/SUS316 stainless steel, 6061‑T6 aluminum alloy, C36000 brass and carbon steel, with sufficient bar stock to match different strength, weight and corrosion resistance requirements.
Our custom product range includes connecting sleeves, locating pins, bushings, stepped shafts, threaded fittings and other rotational precision machined parts. Selectable surface treatments: black anodizing, natural metal finish, passivation, nickel plating and zinc plating.
We can supply single parts or matched hardware kits according to assembly needs. Custom machining will be developed based on your drawings or samples. Small batch prototype testing is available before formal mass production.

Typical Application Scenarios

Our Custom CNC Turned Knurled Threaded Adapter Fitting is widely used for equipment port conversion, mechanical threaded coupling, automation fixture assembly, instrument joint fitting, manual‑twist connection and non‑standard hardware conversion assembly.

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.