Dongguan Lanbo Electronics Technology Co., Ltd.

Stepped Threaded Locating Pin | CNC Turned Custom Parts

Stepped Threaded Locating Pin | CNC Turned Custom Parts
Part No :

Stepped Threaded Locating Pin | CNC Turned Custom Parts 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	Stepped Threaded Locating Pin \| CNC Turned Custom Parts
Manufacturing Process	CNC lathe turning, external thread machining, taper turning, shoulder forming, chamfering, deburring & precision finishing
Materials Available	SUS304/SUS316 stainless steel, 1018/1045 carbon steel, 6061/7075 aluminum alloy, brass
Surface Treatment	Raw machining finish, passivation, electropolishing, zinc plating, nickel plating, sandblasting, black oxide coating
Tolerance Standard	Shaft diameter tolerance: ±0.01mm; overall length tolerance: ±0.02mm; thread precision compliant with ISO standard; surface roughness Ra 0.8 ~ Ra 3.2
Inspection Standards	Full dimensional checking with micrometer & optical comparator; thread pitch inspection; step height tolerance testing; appearance & surface quality inspection; FAI dimensional inspection reports available
Customization Service	Custom step quantity, shaft diameter, total length, thread specification & position; customizable taper angle, shoulder size; optional materials, tolerance grades and surface treatments; OEM & ODM custom drawing development

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Detailed description

Stepped Threaded Locating Pin | CNC Turned Custom Parts

Our custom stepped threaded locating pins are multi-stage precision CNC turned components with layered shoulders, tapered transitions and external male threads. As a professional Dongguan-based CNC machining manufacturer, we fabricate non-standard stepped shaft pins with ±0.01mm ultra-precise tolerance fully according to customers’ CAD drawings. Featuring dual limit flanges and threaded connection ends, these locating pins are widely used for locking positioning, shaft assembly and fastening connection on automation jigs, testing equipment and precision industrial machinery. We provide full OEM & ODM customization to meet diverse structural assembly demands of global industrial equipment suppliers.

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 Stepped Threaded Locating Pin & Its Industrial Role

A stepped threaded locating pin is a multi-tiered cylindrical positioning fastener composed of multiple stepped shoulders, tapered sections and threaded ends. The layered stepped structures serve as accurate limit stops to control assembly depth, while the top external thread enables reliable locking installation and disassembly.
Inside automated production equipment, test fixtures and precision mechanical assemblies, this pin acts as the core positioning benchmark for component fitting and fixation. Stable thread accuracy, step height tolerance and concentricity are critical to avoid assembly deviation, loosening and jitter during long-term continuous operation. Unqualified dimensional precision will lead to unstable equipment operation and frequent part replacement, so high-precision custom CNC turned stepped threaded pins are essential structural parts for industrial precision assembly.

Custom Stepped Threaded Locating Pin

We provide one-stop custom CNC turning services for stepped threaded locating pins and multi-stage stepped shafts, serving automation equipment manufacturers, precision jig factories and electronic equipment enterprises around the world.
Our product portfolio covers all kinds of customized stepped positioning hardware: double-flange threaded locating pins, multi-step tapered connecting shafts, shoulder limit dowel pins, non-standard long stepped threaded mandrels and special-shaped stepped axle parts.
All components are manufactured via precision CNC lathe turning, combined with thread cutting, taper turning and shoulder forming processes. We complete turning, threading, chamfering, deburring and surface finishing strictly in accordance with your 2D and 3D engineering drawings. Besides separate finished single pins, we also offer accessory matching and kitting service to simplify your incoming material management and on-site assembly work.

Key Advantages of Our CNC Turned Stepped Threaded Locating Pins

Precise concentricity & consistent dimensional accuracy

All stepped threaded pins are processed on multi-axis CNC turning machines with whole-process dimensional monitoring. Unified step height, shaft diameter and thread precision guarantee accurate limit positioning and locking effect, effectively eliminating assembly deviation and component shaking.

Flexible secondary processing & supporting kitting service

On the basis of standard turning, thread and stepped forming, we support customized taper angles, step counts and thread specifications. We can also be equipped with matching nuts, gaskets and retaining parts as required, reducing your secondary processing workload and shortening your overall equipment production cycle.

Sturdy & durable for long-time industrial continuous operation

We select premium stainless steel, carbon steel and aluminum alloy as raw materials. Optional passivation, electroplating and polishing treatments bring outstanding anti-rust, wear-resistant and anti-corrosion performance, adapting to all kinds of indoor workshop long-running working environments.

Fully customizable structural overall design

We freely adjust the number of steps, shaft diameter, total length, thread size, thread position and taper structure according to your assembly drawings. Brand new non-standard special structural designs are fully supported for your updated generation equipment development.

Stable mass production & on-time delivery capability

From small-batch prototype sampling to large-volume bulk orders, we always implement unified quality inspection standards for stepped threaded pins. We have sufficient production capacity to realize continuous stable supply and support long-term procurement plans of global industrial brands.

OEM Custom Service Scope

We provide comprehensive tailor-made solutions for custom stepped threaded locating pins and all types of precision CNC turned components. For material selection, we work with SUS304 and SUS316 stainless steel, 1018 and 1045 carbon steel, 6061 and 7075 aluminum alloy, as well as C36000 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 full production commitment.

Typical Application Scenarios

Our custom stepped threaded locating pins and CNC machined multi-stage stepped shafts are widely applied in industrial automation assembly fixtures, precision testing jigs, automotive mechanical assembly parts, semiconductor testing equipment, medical instrument structural fittings and intelligent electronic device connecting 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.