Spring Pins are kind of mechanical fasteners that tends to secure two different parts of any machine together and leads to their relativity with each other. These pins are also termed as tension pins or roll pins, and have the diameter of the holding hole much larger than the entire diameter. Also, there chamfer on either sides that serves to catch hold of the pin inside the hole. Their hold is considered to be a tight and secured one and can be availed in different sizes. Spring Pins are highly durable and have wonderful strength.