Custom Stainless Steel Knurled Shoulder Pin Precision CNC Turned Press Fit Locating Dowel Pin with Straight Knurling
Our knurled shoulder pin is a precision machined locating component fabricated on CNC lathes with secondary straight knurling operation. The knurled section enables secure press-fit installation to prevent rotation and shifting during operation, while the shoulder provides accurate depth positioning during assembly. This standard sample is constructed from 304 stainless steel with passivation treatment for enhanced corrosion resistance. We provide full OEM & custom service: modify dimensions, change raw materials, adjust knurling patterns, tolerances and surface finishes to match your exact drawing or sample requirements. Widely adopted as locating pins, assembly locking pins, positioning shafts in general machinery, automation equipment, household appliances and electronic equipment assemblies.
| Product Model | Custom Knurled Shoulder Pin |
| Raw Material | 304 Stainless Steel; Support 316 stainless steel, carbon steel, aluminum alloy custom |
| Machining Process | CNC Turning + Straight Knurling |
| Sample Dimensions | Max OD 9mm, Knurl OD 6.1mm, Overall Length 25.8mm |
| Surface Treatment | Passivation; Optional polishing, sandblasting |
| Tolerance | Standard ±0.02mm, Tighter tolerance available upon custom request |
| Hardness | Based on selected material |
| Connection Type | Press Fit Assembly |
- Automation equipment positioning assemblies
- General industrial machinery component locking
- Electronic equipment housing locating structures
- Household appliance mechanical assemblies
- Medical equipment non-standard fastener parts
- Test fixture & tooling positioning components
- Conveying equipment assembly locating parts
We are a professional CNC machining manufacturer providing full custom service for knurled shoulder pins. You can provide technical drawings or physical samples for production.
Available custom options:
- Custom overall length, shoulder diameter, knurled segment size
- Multiple material selection: stainless steel, aluminum, alloy steel
- Adjustable knurling type: straight knurl, diamond knurl
- Custom surface treatment and tolerance requirements
- Internal thread, counterbore and other special structure processing
- Small batch and mass OEM orders are both welcomed.
- Precise dimension control avoids assembly mismatch and positioning deviation
- Uniform knurl texture ensures stable press fit, effectively preventing pin loosening and rotation
- Stainless steel material with passivation delivers reliable anti-corrosion performance for long service life
- One-stop CNC machining reduces multi-supplier coordination work for your custom parts
- Flexible custom service, no need to adjust your design to fit standardized off-the-shelf pins
- Raw material incoming inspection with material certification
- In-process dimension sampling inspection during CNC turning and knurling processing
- Finished product full dimensional check using calipers, micrometers and optical measuring instruments
- Surface appearance inspection to eliminate scratches, burrs and defective knurling
- Provide inspection reports according to customer requirements before shipment
| Item | Details |
|---|---|
| Lead Time | Sample order: 7–10 working days; Mass production order: 15–25 working days based on quantity |
| Shipping Methods | DHL, FedEx, UPS, TNT, Sea freight, Air freight as your selection |
| Packing | Anti-rust oil + plastic bag, carton outer packaging to avoid scratch and corrosion during transit |
| Support | Door-to-door delivery and port-of-destination shipping terms |
Can you produce knurled shoulder pins strictly according to my drawings or samples?
Yes, we offer full OEM custom service. Send us your 2D/3D drawings or physical samples for quotation and production.
What file formats of drawings do you accept?
We accept PDF, DWG, DXF, STEP, IGIS file formats.
Is small batch order acceptable?
Yes, we support prototype small batch orders and large volume mass production.
Can I choose other materials besides 304 stainless steel?
Absolutely, we can machine 316 stainless steel, aluminum alloy, carbon steel and other metals as required.
What is your typical tolerance range for custom turned pins?
Standard tolerance is ±0.02mm. We can achieve tighter precision if specified on your drawing.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.