Coiled Spring Pins

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SPIROL invented the Coiled Spring Pin and its production technology in 1948. Since that time, the Coiled Spring Pin has proven to be the most versatile spring pin in the industry. More than fasteners, SPIROL Coiled Pins are shock-absorbing elements that are integral, active components of a total assembly. A problem solver, SPIROL Coiled Pins offer the lowest installed cost in most applications.

Standard SPIROL® Coiled Spring Pins provide flexibility, uniform strength, equal stress distribution, closer diameter tolerances, no interlocking, trouble-free automatic feeding, and they reduce costs. Heavy, standard, and light duty pins provide combinations of strength, flexibility and diameter to meet the specific engineering objectives of your pinning applications.

Otherwise known as Spiral Pins, Coil Pins, Roll Pins or simply Spring Pins, Coiled Spring Pins are available 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 allow us to work with you to design a custom Coiled Pin to meet your unique requirements!

Standard Duty Coiled Spring Pins

Wherever space permits, use Standard Duty Coiled Spring Pins. These pins have the optimum combination of strength and flexibility for use in nonferrous and mild steel components. They are also recommended in hardened components because of their greater shock absorbing qualities.

ISO 8750, ASME B18.8.3M, ASME B18.8.2

Heavy Duty Coiled Spring pins

Heavy Duty Coiled Spring Pins should be used in hardened materials where space or design limitations rule out a larger diameter standard duty Coiled Pin.

ISO 8748, ASME B18.8.3M. ASME B18.8.2

Light Duty Coiled Spring Pins

Light Duty Coiled Spring Pins are recommended for soft, brittle or thin materials and where holes are close to an edge. In situations not subjected to significant loads, light duty Coiled Pins are often used because of easy installation resulting from lower insertion force.

ISO 8751, ASME B18.8.3M, ASME B18.8.2

YOUR TOTAL ASSEMBLY SOLUTION

Installation Technology for Pins

In addition to a comprehensive line of engineered components used for joining and assembly, SPIROL also offers a full range of Pin Installation Equipment designed to facilitate cost-effective and high quality assembly of your products. Our installation solutions range from manual machines to fully automated work cells with statistical process control and error-proofing options. We are the only company of our kind that offers the total integrated solution.

Additional Information

Other SPIROL Coiled Spring Pin types include the Series 550 Coiled Pins for Cosmetic Cases and the Series 880 Coiled Pins for PC Board Card Lock and Ejector Clip Hinges.

Read how Coiled Spring Pins Offer a Unique Balance of Strength and Flexibility and other White Papers on Coiled Spring Pins

Review our Application Stories about how SPIROL has helped provide quality and cost saving solutions to companies who had fastening, joining and/or assembly challenges.

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