Custom Plastic Dowel Pins, Precision PTFE Insulating Cylindrical Pins
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Product Highlights
- High-Precision Alignment: Ensures assembly quality and component stability with tight tolerances and uniform diameter.
- Electrical Insulation: Prevents short circuits and EMI by insulating against stray current in electronic assemblies.
- Lightweight Design: Lighter than metal pins, ideal for reducing weight in prototypes and moving assemblies.
- Custom Material Options: Available in Wear-Resistant Acetal, Chemical-Resistant PTFE, Impact-Resistant Polycarbonate, and High-Strength PEEK.
- OEM/ODM Support: Professional R&D team provides design, prototyping, tooling, and production services.
- Wide Material Range: Supply standard and special fasteners in metals (Steel, Brass, Aluminum) and non-metals.
- Fast Quotation Service: Quotes provided within 24 hours of inquiry, with priority handling for urgent requests.
- Flexible MOQ: Minimum Order Quantity is just 1 piece, supporting small quantity orders.
Product Attributes
- Customization
- Available
- Type
- Pin
- Customized
- Yes
- Model NO.
- Plastic Dowel Pins (JY438)
- Drawing
- Acceptable
- Samples
- Acceptable
- Material
- Metals and Non-Metals
- Transport Package
- Polybag+Export Strong Carton
- Specification
- Diameter 2.0-26.0 mm
- Trademark
- JAYI
- Origin
- China
- HS Code
- 7326909000
- Production Capacity
- 5000000/Month
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Product Description
Common materials:
-Wear-Resistant Acetal
-Chemical-Resistant PTFE
-Impact-Resistant Polycarbonate
-High-Strength PEEK
Surface: Natural finish, smooth and non-conductive
Tolerance: standard or as requested
Assemble circuit boards and other electronic parts with dowel pins that insulate against stray current. These pins prevent short circuits and electromagnetic interference (EMI) that can harm performance and cause malfunctions. They're also lighter than metal pins if you need to reduce weight in prototypes and moving assemblies. Dowel pins are machined to tight tolerances and have a uniform diameter for a snug fit. Since they can be hard to remove, they are best for fixtures that don't need to be adjusted or taken apart frequently.
In addition to plastic dowel pins, we also supply locating pins in a variety of other materials, commonly including alloy steel, stainless steel, brass, and aluminum.
Thanks for your attention to our products, We (Shanghai Jiangyi Precision Parts Co., Ltd) CAN supply standard fasteners, and special fasteners including non-standard lengths and diameters according to your drawings and specifications - usually with relatively short lead times and favorable prices available. More information please see our "Company Profile" and "Custom-Made Service" and send an inquiry to us, we will do our best to support you.
Turnery:
Cold Heading:
Casting:
Stamping:
Injection Molding:
Shanghai Jiangyi Precision Parts Co., Ltd has been established since June 2015. With a professional background and more than 15 years of the average working year, we are a group of young people committed to promoting the development of precision manufacturing in China.
Currently, our business scope covers turning(automatic lathe and CNC lathe), cold heading, injection molding, stamping, and casting. Of course, turning processing is the most of our core part of the business. We are concentrating on non-standard and customized precision machining products and parts.
For the early stage of product design, we are able to provide process analysis and technical support. When the project is launched, we can supply the samples. Full professional service and support are guaranteed until mass production.
Our core values: Professional, Reliable, Cost-efficient, and Sustainable.

Factory Images
Testing Equipment
Packaging Specification:
1. We have several sizes of packing dimensions, can be 10kg or 15kg per carton;
2. Normal packing:1000pcs/500pcs/250pcs per polybag, then polybags into cartons;
3. For large orders, we can provide special sizes of cartons and delivery goods on pallets or in plywood cases;
4. For customized specifications, we can provide special packing material according to your request.

| Available Material | 1. Stainless Steel: AISI303, AISI304, AISI316, AISI416, AISI420,etc. |
| 2. Free Cutting Steel:12L14,1215,etc. | |
| 3. Brass:C37700 ( HPb59), C38500( HPb58),C27200(CuZn37), C28000(CuZn40/H62),C3604,etc. | |
| 4. Bronze: C51000, C52100, C54400,CuSn8,etc. | |
| 5. Steel:C45(K1045), C20,etc | |
| 6. Aluminum: Al6061, Al6063, etc. | |
| 7. Carbon Steel:AISI1006,AISI1010,AISI1022,etc. | |
| 8. Alloy Steel: SCM435,10B21,etc. | |
| 9. PA6,PA66,PP,PC,POM,PEEK(FOR Injection) | |
| 10. According to customer's requirement | |
| Finish | Electroplating: Zinc Plating, Ni Plating, Electroless Nickel Plating, Zn-Ni Alloy Plating, Tin Plating, Copper-plating, Hot-dip Galvanizing, Black Oxide Coating, Black Anodizing, etc |
| Powdering, Rust Preventive Oil, Silver plating, etc | |
| Testing Equipment | CMM, Projector, Pull Tester, Automatic Optic Inspector, Projecting Apparatus |
| Salt Spray Test, Durometer, Coating Analyzer, Tensile Machine | |
| Management System | ISO9001/SGS/Rohs/IATF16949 |
| Certification | SGS,RoHS,Material Certification,PPAP |
| Production Capability | Auto Lathe Turning: ODΦ1.0-20mm, Tolerance.±0.01mm |
| CNC Lathe Turning:ODΦ1.0-460mm,Tolerance.±0.005mm | |
| CNC Milling:800x600mm(LxW),Tolerance.±0.05mm | |
| Grinding: Tolerance.±0.002mm | |
| Screw Cold Heading and Rolling: Metric 0.8-M16 | |
| Injection:300T Max | |
| Stamping:250T Max |
1. When can I get my quotation?
We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.
2. How can I get a sample to check your quality?
After price confirmation, you can require samples to check our quality. If you need the samples, we will charge for the sample cost. But the sample cost can be refundable after order confirmation when your quantity of the order up to a certain amount.
3. Can I order a small quantity?
Of course, you can.
4. Do you provide ODM/OEM service?
OEM / ODM is welcome, We got a professional and creative R&D team. From the concept to finished goods, we do all ( design, prototype reviewing, tooling and production ) in the factory.
5. How about the after-service of your product?
We usually feedback within 24 hours after we get your complaint. And we can guarantee a satisfied solution to every customer.
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR254530". Items marked "" are certified.
Company Profile
Our core value: Professional, reliable, cost-efficient and sustainable.
Shanghai Jiangyi Precision Parts Co., Ltd has been established since June 2015. With a professional background and 10 years of average working year, we are a group of young people committed to promoting the development of precision manufacturing in China.
Currently our business scope covers turning(automatic lathe and CNC lathe), cold heading, injection molding, stamping and casting. Of course, the turning and injection are still the most of our core part of the business. We are concentrating on the non-standard and customized precision machining products and parts.
For the early stage of product design, we are able to provide process analysis and technical support. When the project is launched, we can supply the samples. Full professional service and support are guaranteed until mass production.
√ Turning
There are different brands of CNC machine tools and lathes, such as Tsugami, Citizen, Nomura, Miyano from Japan and so on.
The turning diameter for Tsugami, Citizen and Nomura machine tools ranges from 2mm to 26mm and working precision is 0.005mm. For the Miyano CNC lathe, the maximum turning diameter can reach 42mm and its machine accuracy is 0.01mm. There is also the automatic lathe from Taiwan whose turning diameter range is from 2mm to 20mm and the accuracy is 0.01mm.
There are various material for turnery such as plain carbon Steel(20#, 45#), free-cutting steel(1215), stainless steel(SUS303, SUS304, SUS316, SUS420), brass(C3604), aluminum(6061) and so on.
√ Cold Heading
The main facilities are multi-stations cold heading machines and thread rolling machines. M1.0 -M12 standard and non-standard screws are machinable.
√ Injection Molding
We now have the injection molding machine from L. K. Group from Hong Kong. Its tonnage ranges from 50t -300t.
√ Stamping
The main facility is punching machine, which brand are Seyi from Taiwan and Yangli from China. The punching tonnage is 63 t to 125t.
√ Casting
At present the main process is to use the silica sol process to product the cast with carbon steel, stainless steel(SUS304, SUS316, SUS316L), the weight of the cast is from 0.01kg to 150kg.
About Our Factory & Business Background
- Address
- No. 655 Fengzhou Road, Jiading District, Shanghai, China
-
Registered Capital
- 1,600,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union
- International Commercial Terms(Incoterms)
- FOB, CIF, DDP, EXW, Others, CFR, DAP
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: one month -
Nearest Port
- Shanghai Port , Ningbo Port
-
Minimum Order Quantity
- 1 Pcs
Our Production Capability & Technical Expertise
-
Main Products
- Machining Parts, Hardwares, Screws, Shafts, Insert Nuts, Standoffs, Injection Parts, Stamping Parts
-
Customization Options
- Customization from Samples
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2015-06-12
-
Export Year
- 10 Years
- Main Markets
- North America, South America, Southeast Asia, Mid East, Western Europe
-
Repeat Buyers Choice
- 50%~80%
FAQ
- When can I get my quotation?
- We usually quote within 24 hours after receiving your inquiry. For urgent requests, please call or mention it in your email for priority handling.
- How can I get a sample to check your quality?
- After price confirmation, you can request samples. The sample cost is chargeable but refundable upon order confirmation if the order quantity reaches a certain amount.
- Can I order a small quantity?
- Yes, you can. We support small quantity orders with a Minimum Order Quantity (MOQ) of just 1 piece.
- Do you provide ODM/OEM service?
- Yes, OEM and ODM services are welcome. Our professional R&D team handles everything from concept and design to tooling and production.
- How about the after-service of your product?
- We provide feedback within 24 hours of receiving a complaint and guarantee a satisfactory solution for every customer.
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