How to choose the right spring pin
Are you buying spring pins? Spring pins provide a quick and easy way to secure parts. Also known as tension pins, they are cylindrical fasteners.
Spring pins are designed for use in smaller diameter holes. When a spring pin is inserted into a smaller diameter hole, the spring pin deforms, exerting a force against the hole wall. However, there are a few things you should consider when choosing a spring pin.
Slotted and Coiled
Most spring pins fall into one of two categories: slotted or coiled. Slotted spring pins are the most common. They are hollow cylindrical sheets of metal with a vertical narrow hole in the side. With this hole, the slotted spring pin is able to deform to create a spring-like action.
Coiled spring pins use different designs. As the name suggests, they consist of a coiled piece of metal. A helical spring pin is made by winding a thin sheet of metal multiple times into a cylindrical shape.
corrosion-resistant material
You should choose spring pins made of corrosion-resistant materials. Whether you use them indoors or outdoors, they will inevitably get wet. Moisture is always present in the air, which is indicated by the surrounding humidity level. High humidity levels indicate excess water vapor. Exposure to this moisture may cause some spring pins to rust or corrode.
Fortunately, spring pins are made of corrosion-resistant materials. Some of them are made of aluminum. Aluminum provides a high level of corrosion protection. You can also find spring pins made of stainless steel and other corrosion-resistant alloys.
diameter
Whether you prefer slotted spring pins or helical spring pins, you need to consider the diameter. The diameter of the spring pin must be larger than the hole you plan to place it in.
Like traditional compression springs, spring pins work by deformation. When you put a spring pin into a smaller diameter hole, it deforms. The spring-like nature of these pins enables them to press against the walls of the hole, thereby holding one or more parts in place.
When choosing spring pins, make sure the diameter is larger than the hole you plan to place them in. If the diameter of the spring pin is smaller than the diameter of the hole, you won't be able to use it. Both the slotted and helical spring pins must be larger in diameter than the hole.
