Spring Pins, also known as roll pins or tension pins, are versatile, hollow cylindrical fasteners with a longitudinal slot. They are designed to be inserted into a drilled hole, where their elastic compression creates a secure, self-retaining fit that withstands vibration and shear loads.

Typical Applications:

• Pivot & Hinge Points: Commonly used in linkages, levers, and assemblies requiring a free-moving yet retained joint.

• Shaft & Component Retention: Ideal for securing gears, pulleys, and collars onto shafts, replacing set screws or keys.

• Alignment & Doweling: Providing precise location and alignment between machine components.

Our Product & Custom Capabilities:
We supply spring pins made from high-carbon steel or stainless steel, ensuring consistent spring-back action and durability. Available in standard diameters and lengths, we also offer customization focused on:

• Material & Finish: Choice of material and plating (e.g., zinc, passivation) for strength and corrosion resistance.

• Dimensional Precision: Custom outer diameters, wall thicknesses, and lengths to meet specific hole tolerances and retention force requirements.

• Chamfer & Slot Design: Optimized end chamfers for easy installation and controlled slot geometry for reliable performance.

Our spring pins provide a cost-effective and reliable solution for fastening, retaining, and doweling in demanding mechanical assemblies.