Dongguan Lanbo Electronics Technology Co., Ltd.

Custom CNC Turned Serrated Flange Threaded Insert Standoff

Custom CNC Turned Serrated Flange Threaded Insert Standoff
Part No :

Custom CNC Turned Serrated Flange Threaded Insert Standoff 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 Serrated Flange Threaded Insert Standoff
Manufacturing Process	CNC lathe turning, serrated knurling forming, internal thread tapping, flange shoulder forming, end face chamfering, precision deburring
Materials Available	SUS304 / SUS316 stainless steel (standard), carbon steel, C36000 brass; special alloy materials available upon request
Surface Treatment	Natural machined finish, passivation (for stainless steel), zinc plating, nickel plating, black oxide
Tolerance Standard	Dimensional tolerance ±0.01mm; standard internal thread fit accuracy; strict perpendicularity between flange face and standoff axis; uniform serrated tooth profile; precise outer diameter fit tolerance
Inspection Standards	Caliper & micrometer dimension measurement, internal thread go/no‑go gauge testing, serrated profile & appearance inspection, flange perpendicularity verification, all conducted under ISO quality management system
Customization Service	Custom overall length, outer diameter, flange size and internal thread specification according to customer 2D/3D drawings or physical samples; support prototype trial production, OEM & ODM mass‑volume orders

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Detailed description

Custom CNC Turned Serrated Flange Threaded Insert Standoff

Our Custom CNC Turned Serrated Flange Threaded Insert Standoff is a high-strength press-fit fastening component with serrated knurled flange and precision internal thread, designed for reliable threaded connection on sheet metal and thin-wall panels. As a professional CNC turning manufacturer based in Dongguan, we produce customized serrated flange threaded standoffs with ±0.01mm ultra-precise tolerance strictly following customers’ 2D & 3D engineering drawings. We support full OEM & ODM customization for total length, outer diameter, flange dimension and internal thread specification. These threaded insert standoffs are widely used for chassis assembly, electronic enclosure fastening, cabinet panel mounting and sheet metal structural connection in electronics, communication and industrial equipment industries.

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

Serrated flange threaded insert standoff is a press-in threaded fastening fitting composed of serrated knurled flange, smooth cylindrical standoff body and precision internal through thread. The serrated teeth under the flange cut into the sheet metal surface after press installation, forming firm mechanical interlock to provide excellent anti-rotation and pull-out resistance; the integral flange acts as a depth stop to ensure consistent pressing depth; the internal thread provides stable and reusable threaded connection. It solves common industry pain points such as low thread strength of directly tapped thin sheet metal, easy thread slipping and poor anti-loosening performance under vibration. The integrally machined structure ensures reliable fastening strength and stable connection performance, effectively improving assembly efficiency and structural durability for sheet metal and enclosure systems.

Our Product Service

We provide one-stop custom CNC turning service for serrated flange threaded insert standoffs for global electronics, sheet metal fabrication and industrial equipment suppliers. Our product scope covers various press-fit threaded inserts, clinching standoffs, threaded bushings and other non-standard precision turned fasteners. We complete full turning, serrated knurling forming, internal thread tapping, flange finishing and deburring strictly based on customer engineering drawings. Value-added services include diversified surface treatment, full-dimension inspection, prototype sampling and large-batch OEM production.

5 Core Advantages

Serrated anti-rotation flange with firm interlocking force

The serrated knurled teeth under the flange are precisely formed, which cut deeply into the sheet metal substrate during press installation, creating tight mechanical interlock. It effectively prevents the insert from rotating and loosening under torque and vibration, providing outstanding pull-out resistance and anti-torsion performance, ensuring long-term stable threaded connection without additional fixing measures.

Integral limiting flange for accurate press depth

The flat flange shoulder is machined integrally with the standoff body, serving as a reliable mechanical stop to precisely control the press-in depth and ensure consistent installation height for each insert. The enlarged flange surface distributes bearing force evenly, improves overall connection strength, and avoids over-pressing damage to thin sheet metal panels.

High-precision internal thread with reliable fit

The internal thread is precisely tapped with strict fit accuracy, passing standard go/no-go gauge inspection. It features smooth tooth profile, accurate pitch and stable matching performance with standard screws, ensuring smooth assembly and reliable locking force, suitable for repeated disassembly and assembly without thread slipping.

Premium material with excellent strength and corrosion resistance

Standardly made of high-grade SUS304/SUS316 stainless steel, it has excellent corrosion resistance and high mechanical strength, suitable for outdoor, humid and corrosive working environments. Optional carbon steel and brass materials are also available to match different cost and performance requirements.

Full-parameter drawing-based customization

All key parameters including total length, outer diameter, flange size, thread specification and serration form can be fully adjusted according to your 2D/3D drawings or physical samples. We accept both small-batch prototype verification orders for new product development and large-volume mass production orders for formal projects.

OEM Custom Service Range

We provide comprehensive customized solutions for custom serrated flange threaded insert standoffs and all kinds of precision CNC turned components. Available materials include SUS304/SUS316 stainless steel, carbon steel, C36000 brass and 6061‑T6 aluminum alloy, with sufficient bar stock to match different strength, corrosion resistance and cost requirements.
Our custom product range includes threaded inserts, standoff pins, bushings, connecting shafts and other rotational precision machined parts. Selectable surface treatments: natural machined finish, passivation, zinc plating, nickel plating, black oxide and anodizing.
We can supply single parts or matched fastener 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 Serrated Flange Threaded Insert Standoff is widely used in sheet metal chassis press-fit assembly, electronic enclosure threaded fastening, communication cabinet panel mounting, automotive sheet metal threaded connection, industrial equipment clinching fastener and precision instrument housing threaded installation 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.