Dongguan Lanbo Electronics Technology Co., Ltd.

Custom CNC Turned Internal Thread Cylindrical Connector Pin

Custom CNC Turned Internal Thread Cylindrical Connector Pin
Part No :

Custom CNC Turned Internal Thread Cylindrical Connector Pin 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 Internal Thread Cylindrical Connector Pin
Manufacturing Process	CNC turning, cross‑hole drilling, internal thread tapping, end chamfering, precision deburring
Materials Available	SUS304 / SUS316 stainless steel, C36000 brass, 6061 aluminum alloy, carbon steel
Surface Treatment	Natural machined finish, passivation, nickel plating, zinc plating, sandblasting
Tolerance Standard	Dimensional tolerance ±0.01mm; precise thread tolerance; accurate hole‑position dimension; smooth cylindrical surface
Inspection Standards	Caliper & micrometer dimension checking, thread gauge verification, hole‑position inspection, visual surface inspection under ISO quality requirements
Customization Service	Custom outer diameter, overall length, thread specification and cross‑hole position based on drawings or samples; support prototype trial, OEM & ODM mass production

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Detailed description

Custom CNC Turned Internal Thread Cylindrical Connector Pin

Our Custom CNC Turned Internal Thread Cylindrical Connector Pin is a solid cylindrical coupling component with two cross internal threaded holes. As a professional CNC turning manufacturer based in Dongguan, we produce custom connector pins with ±0.01mm ultra‑precise tolerance strictly following customers’ 2D & 3D engineering drawings. We support full OEM & ODM customization for pin diameter, length, thread size and hole position. These cylindrical connector pins are widely adopted for module connection, component splicing and mechanical assembly in automation fixtures, instrument equipment and precision mechanical devices.

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

Internal thread cylindrical connector pin is a solid round coupling bar with transverse tapped holes. Cross internal threads allow fast bolt‑on connection between multiple mechanical parts. It solves the pain points of loose connection and difficult assembly adjustment for equipment modules. It replaces complex multi‑part connecting structures, improves assembly efficiency and keeps stable connection strength for long‑term mechanical operation.

Our Product Service

We provide one‑stop custom CNC turning service for internal thread cylindrical connector pins for global mechanical equipment and automation fixture suppliers. Our product scope includes custom connecting pins, coupling shafts, locating dowels and other non‑standard turned hardware. We perform CNC turning, cross‑hole drilling and thread tapping according to customer drawings. We offer value‑added services including surface finishing, thread verification, prototype sampling and bulk‑order production.

5 Core Advantages

Integrated cylindrical connecting structure

Solid one‑piece turned body delivers high structural rigidity, avoids deformation under assembly load.

Accurate cross internal thread machining

Precision tapping ensures good thread matching, stable bolt locking performance.

Flexible hole‑position customization

Transverse threaded holes can be set at different positions to satisfy varied module‑splicing requirements.

Multiple material options

Stainless steel, brass and aluminum are optional for anti‑corrosion, lightweight or high‑strength working conditions.

Drawing‑driven custom production

Full customization of diameter, length and thread size; small‑batch prototype and large‑volume orders are both acceptable.

OEM Custom Service Range

We provide comprehensive customized solutions for custom internal thread cylindrical connector pins and all kinds of precision CNC turned components. Available materials include SUS304/SUS316 stainless steel, C36000 brass, 6061 aluminum alloy and carbon steel, with sufficient bar stock to match different strength, conductivity and corrosion resistance requirements.
Our custom product range includes locating pins, bushings, stepped shafts, threaded fittings and other rotational precision machined parts. Selectable surface treatments: natural machined finish, passivation, nickel plating, zinc plating and sandblasting.
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 Internal Thread Cylindrical Connector Pin is widely used in automation fixture assembly, precision mechanical equipment splicing, instrument hardware connection, electronic equipment module assembly, testing jig component coupling and industrial tooling 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.