Fastener Superstore Blog
Coiled Spring Pins at FSS
April 23, 2025
Coiled Spring Pins are hollow, headless pins with chamfered ends, formed or wrapped from a steel sheet to a diameter slightly greater than that of the hole into which it's being inserted.
During installation, the pin diameter contracts and then creates outward pressure against the hole. This outward pressure is what holds the pin in place.
Coiled pins are more flexible than slotted pins, making them preferable for use in softer materials. They are also easier to install than slotted pins and are superior in their ability to withstand vibration following installation.
We carry coiled pins in steel with a thermal black finish, and in 420 stainless steel. Diameters range from 1/16" up to 3/8", while lengths range from 1/4" up to 3".
Check out our full selection of coiled spring pins here!