Coiled spring pin ISO 8748, 8750, 8751, ASME B18.8.2, ASME B18.8.3M

SPIROL invented the Coiled Spring Pin and its production technology in 1948. Since that time, the Coiled Pin has proven to be the most versatile Spring Pin in the industry. Easily recognised by its unique 2 1/4 coil cross-section, Coiled Pins are self-retaining fasteners achieved by radial tension applied against the hole wall, and they are the only press-fit pins designed to remain flexible after installation. More than fasteners, SPIROL Coiled Pins are shock-absorbing elements that are integral, active components of a total assembly. Coiled Spring Pins are available in three duties, light duty, standard duty and heavy duty, to enable the designer to select the right combination of strength, flexibility and diameter to suit different host materials, strength requirements and loading types. SPIROL Coiled Pins typically offer the lowest installed cost in most applications. Otherwise known as Spiral Pins, Coil Pins, Roll Pins or simply Spring Pins, SPIROL offers Coiled Spring Pins in both inch and metric sizes in a variety of materials and finishes from 0.8mm / .031” (1/32) in diameter up to 20mm / .750” (3/4) in diameter. Select from our expansive standard offering, or take advantage of our complimentary Application Engineering support and allow us to work with you to help determine the most appropriate Coiled Pin for your specific application and assembly needs! If installation equipment is required, SPIROL also offers a standard comprehensive line of Pin Installation Equipment from manual to fully automatic modules, with or without out fixturing, to support your Coiled Pin assembly requirements.