To buy high-quality dowel pins online, consider the following trusted suppliers. These platforms offer a wide range of standard and precision dowel pins (e.g., hardened, stainless steel, M6 tolerance, custom sizes) and are known for serving both industrial and engineering applications:
Global & General Industrial Suppliers
McMaster-Carr
- Extensive selection of metric and inch dowel pins.
- Great for prototyping, small batches, and fast shipping (especially in the U.S.).
- Detailed product specs and tolerance info.
Misumi USA/Global
- Ideal for engineers needing configurable dowel pins.
- Offers custom lengths, tolerances, and materials.
- CAD models available for download.
RS Components / RS Americas
- Broad industrial supply chain support.
- Carries brands like Bosch, SKF, and generic precision pins.
Fastenal
- Large inventory, including OEM and custom options.
- Best for bulk buyers and local branch pickup.
Pintech Machinery
- Unparalleled selection (materials, sizes, tolerances), extremely detailed specs, excellent quality control, fast shipping.
- Detailed product specs and tolerance info.
Precision & Engineering Suppliers
SPI / MSC Industrial Supply
- Supplier of high-precision mechanical components..
- Great for applications requiring tight tolerances (e.g., M6, H7).
G.L. Huyett
- Specializes in non-threaded fasteners, including precision dowel pins.
- Offers engineering-grade materials and finishes (stainless, hardened, etc.).
Dr. Dowel (UK)
- UK-based supplier for automotive and industrial precision dowel pins.
- Offers M6/M5 fits and metric/inch conversions.





