Metal Dowel Pins are solid, precision-ground cylindrical fasteners engineered with strict dimensional tolerances to ensure rigid structural alignment, superior shear strength, and exact joint positioning in heavy-duty machinery. As a professional Dowel Pins Supplier, Anhui Pins Metal delivers high-precision dowel pins compliant with ISO/DIN standards and custom OEM solutions tailored to your drawings.
| Parameter Item | Specification & Option Details |
| Manufacturing Standards | ISO 8734 (DIN 6325 Hardened), ISO 2338 (Unhardened), DIN6325,DIN7 |
| Diameter Range (d) | Metric: 1.0 mm – 50.0 mm | Inch: 1/16" – 2" (m6, h6 Tolerance) |
| Length Range (L) | 4.0 mm – 200.0 mm |
| Precision & Finish | Precision Ground Surface (Ra ≤ 0.2 µm) with Chamfered Ends |
| Material Options | Bearing Steel (100Cr6 / GCr15), Carbon Steel, Stainless Steel (SUS 304, 316, 420) |
| Surface Hardness | HRC 58–62 (Hardened Steel) |
| Surface Treatments | Plain Oiled, Black Oxide, Passivated |
| Customization Service | We offer custom manufacturing of metal dowel pins according to your specific requirements and drawings. |
Precision Machining Capability
- Tight Tolerance Control
Advanced machining processes and inspection procedures ensure accurate dimensions and reliable fitting performance for precision assemblies.
- Stable Batch Production
Our manufacturing system maintains consistent quality across large-volume orders, helping customers achieve reliable supply for ongoing projects.
- Professional Process Management
From material preparation and machining to surface treatment and final inspection, each step is carefully controlled to ensure product consistency and performance.

OEM & Custom Manufacturing
Custom Dimensions & Tolerances
We manufacture dowel pins according to customer requirements, including customized diameters, lengths, and tolerance levels to meet precise assembly needs.
Material Selection
Different material options are available, including carbon steel, alloy steel, and stainless steel, allowing customers to select suitable materials based on strength, durability, and working environment.
Surface Treatment Options
We provide various surface finishes such as natural finish, black oxide, zinc plating, and other coatings to improve corrosion resistance and meet specific application requirements.
Production & Packaging Support
From prototype development to large-volume production, we provide stable manufacturing support, quality inspection, and customized packaging solutions for efficient supply management.
FAQ
What is the difference between metal dowel pins and regular fasteners?
Dowel pins are mainly used for accurate positioning and alignment rather than clamping. Their precision-machined cylindrical design helps maintain the exact relationship between assembled components.
How should a dowel pin be selected for an application?
Selection usually depends on factors such as hole size, required fit, load conditions, operating environment, and assembly requirements. Proper sizing helps ensure reliable positioning and long-term performance.
Can dowel pins be used for repeated assembly and disassembly?
Yes. They are suitable for applications requiring consistent positioning during repeated assembly processes, such as tooling, molds, and mechanical equipment.
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