Spring Dowel Pin is a high-performance fastener designed for robust and reliable alignment in mechanical assemblies. Made from durable spring steel or stainless steel, it features a coiled design with multiple layers, providing superior flexibility, shock absorption, and resistance to shear forces. The pin compresses during insertion and expands to grip the hole tightly, ensuring a secure fit even in dynamic or high-vibration environments. Commonly used in automotive, aerospace, industrial machinery, and tooling applications, the 4mm coiled pin offers excellent fatigue resistance and long service life. It is easy to install and remove without damaging mating components.
| Size | 4 mm Dia |
| Packaging Type | Box |
| Diameter | 4 mm |
| Material | Carbon Steel |