Custom CNC Machined Stainless Steel Grooved Dowel Pins Locating Pins
Custom
minimum order
1 piece
Country of Origin
Shenzhen
Quantity
$0.10 - $0.10 / piece
Our small custom pins are the perfect addition to any outfit or accessory. With endless design possibilities, you can create a unique accessory that reflects your style. Order yours today!
| Key Attributes | |
| Machining Capabilities | CNC Machining Processes:Broaching, Drilling, Etching/Chemical Machining, Laser Machining, Milling, Turning, Wire EDM, Rapid Prototyping |
| Materials Supported | Aluminum, Brass, Bronze, Copper, Hardened Metals, Stainless Steel, Steel Alloys, Plastic |
| Micro-Machining or Not | Micro Machining |
| Key Processes | CNC Milling, Turning, Drilling |
| Tolerance Standards | Industry-standard precision |
| Surface Treatments | Anodizing, Plasting, Polishing, etc. |
| Applications | Control Systems, Automotive Components |
| Place of Origin | Guangdong, China |
| Model Number | CUSTOM |
| Service Type | Customized OEM/ODM Manufacturing |
| Drawing Formats | PDF, CAD, IGES, STEP |
| Delivery Time | 7-30 Days |
| MOQ | 10 pcs |
· Product Overview
This precision-engineered grooved dowel pin set is custom-manufactured from high-grade 304/316 stainless steel via advanced CNC turning and grooving processes, featuring a compact double-stepped cylindrical profile with a central circumferential groove. Designed for precise positioning, component alignment, or mechanical retention in industrial assemblies, these pins combine exceptional dimensional accuracy, high shear strength, and corrosion resistance. The central groove enables secure retention in mating components, while the smooth precision-ground surface ensures easy installation and reliable alignment. Ideal for electronics, automotive, and precision machinery applications, these pins deliver consistent performance in high-precision environments.
· Core Specifications
| Specification | Details |
|---|---|
| Base Material | 304/316 Stainless Steel (standard, excellent corrosion resistance & high shear strength); optional carbon steel for cost-effective applications |
| Surface Finish | Precision ground (Ra ≤ 0.8μm, smooth & wear-resistant); optional passivation for enhanced corrosion resistance |
| Machining Process | CNC precision turning and circumferential grooving (conforming to ISO 2768-m / ISO 8734 precision pin standards) |
| Dimensional Tolerance | ±0.01mm for outer diameter (OD) and groove position; ±0.02mm for overall length |
| Key Features | Double-stepped cylindrical profile, central circumferential groove for secure retention, smooth precision-ground surface, and corrosion-resistant stainless steel construction |
· Application Scenarios
These grooved dowel pins serve critical roles across high-precision industries:
- Electronic Enclosures: Positioning pins for PCB modules, heat sinks, and industrial control boxes
- Automotive & Transportation: Locating pins for interior components, sensor mounts, and electrical connectors
- Consumer Electronics: Miniature alignment pins for smartphones, laptops, and wearable devices
- Medical Devices: Non-magnetic positioning pins for surgical instruments and diagnostic equipment (316L variant for biocompatibility)
- Instrumentation & Test Equipment: Precision alignment pins for laboratory analyzers and data acquisition systems
- Industrial Machinery: Retention pins for jigs, fixtures, and small mechanical assemblies
· Production Process Introduction
- Design & DFM Validation: Our engineering team optimizes pin dimensions, groove position, and step geometry via Design for Manufacturability (DFM) analysis to ensure maximum retention strength and alignment precision.
- Material Preparation: Premium stainless steel bar stock is cut to size and faced to create a clean starting surface for machining.
- Precision CNC Machining:
- Turning: The double-stepped cylindrical profile is precision-turned to achieve tight OD tolerances and a smooth surface finish.
- Grooving: A central circumferential groove is precision-machined to enable secure retention in mating components.
- Chamfering: All sharp edges are chamfered to facilitate easy installation and prevent injury.
- Surface Finishing: The pins undergo brushing and passivation to enhance corrosion resistance and surface smoothness.
- Quality Inspection: 100% dimensional inspection via CMM verifies OD, groove position, and length; a functional insertion test ensures secure retention.
- Final Packaging: Pins are sorted by size and packed in anti-static bags inside corrugated cartons to prevent scratching or misplacement during transit.
· Packaging and Shipping Methods
- Standard Packaging: Pins are sorted by specification and packed in anti-static PE bags, placed in labeled corrugated cartons. Bulk orders are secured on wooden pallets with plastic wrapping to prevent damage during long-distance transit.
- Shipping Options:
- Express Delivery (3–7 Business Days): DHL/FedEx/UPS for prototype and small-batch orders (full tracking provided).
- Standard Sea Freight (25–40 Business Days): Cost-effective FCL/LCL options for large-volume production orders, with full customs documentation support.
- Custom Packaging: Branded labeling, barcoding, and custom compartment trays are available to align with your independent store’s brand guidelines and inventory management needs.
· Process

· Frequently Asked Questions (FAQ)
What is your Minimum Order Quantity (MOQ)?
Our MOQ is flexible to suit your independent store's e-commerce needs:
- Prototypes/Samples:1 piece available for custom design validation.
- Production Runs: Starting at 100+ pieces for standard configurations. We specialize in low-volume, high-precision custom fabrication to match your online store’s demand.
What are your typical lead times?
- Prototype/Sample Orders: 7–10 business days from final CAD design approval (includes machining and finishing).
- Mass Production: 15–25 business days, depending on order volume, pin size, and custom groove requirements.
- Rush Service: Expedited production (4–6 days for samples) is available upon request for urgent restocks.
Can you accommodate full custom modifications?
Absolutely. We offer end-to-end customization to align with your independent store's product offerings:
- Size & Shape Customization: Custom overall length, outer diameter (OD), and step dimensions to match your specific application.
- Groove Customization: Custom groove width, depth, and position to meet your retention requirements.
- Material Upgrades: Switch between 304 stainless steel (general corrosion resistance) or 316L stainless steel (medical/high corrosion environments) based on your application.
- Surface Finish Options: Custom plating (zinc/nickel), anodizing, or black oxide for enhanced durability or aesthetic appeal.
- Branding & Traceability: Laser engraving of logos, part numbers, or batch codes for full product traceability and inventory management.
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