The Fundamentals of Groove Pins: Working Principle, Benefits, and Why Choose Them

Redefining Fastening Power with Solid Pins
A Groove Pin is a non-threaded, solid fastener distinguished by longitudinal grooves swaged into its surface.
This article delves into its operating mechanism: during manufacturing, the swaging process displaces metal, causing it to bulge along the edges of the grooves, making the pin's localized diameter larger than the drilled hole.

When pressed into a standard hole, this raised material is compressed back into the grooves, creating a powerful outward radial force that results in a secure interference fit.

Compared to traditional taper pins or spring pins, groove pins offer superior shear strength and exceptional vibration resistance.
Their most significant advantage lies in cost-effectiveness—they require less precise hole tolerances, often needing only a standard drilled hole without expensive reaming operations, significantly reducing manufacturing costs and assembly time.