Coiled Pins were designed with assembly in mind. Compared to other pins, their square ends, concentric chamfers, and lower insertion forces make them ideal for easy installation. Additionally, Coiled Pins can accommodate wider hole tolerances than any other pin because they compress during installation and conform to the shape of the hole. All in all, Coiled Pins are the easiest type of pin to install and are designed to be serviceable.
The Coiled Pin’s nominal diameter represents the recommended hole size for the product into which they are being installed. Coiled Pin design guidelines will provide the recommended hole tolerance range. The Coiled Pin is designed so that the pre-installed diameter is greater than the hole size, and the chamfer diameter is smaller than the hole. During installation, the swaged chamfer helps align the Coiled Pin with the hole and facilitates compression of the coils as it is being driven into position.