SPIROL is a technical resource that provides high quality components that improve the quality of your assembly, extend the life of your products and reduce your manufacturing costs. We are the leading global manufacturer of engineered fasteners, shims, installation machines, and parts feeding equipment producing over two billion components annually.
In addition to high quality products, SPIROL has Application Engineers throughout the world to assist you in your designs, supported by state-of-the-art manufacturing centers and global stocking facilities to simplify the logistics of delivering your product.
If you have any questions or would like complimentary Application Engineering support, please feel free to contact us at any time!
The Coiled Spring Pin was invented by SPIROL in 1948. SPIROL offers Coiled Pins in three duties, light, standard and heavy, to provide a variety of combinations of strength, flexibility and diameters to accommodate different host materials and applications. Standard duty (sometimes called "medium" duty) Coiled Spring Pins are generally recommended for use in nonferrous and mild steel assemblies and provide the optimum combination of strength and flexibility in these materials. Standard duty Coiled Pins are also preferred in hardened components when there is enough space to accommodate the larger diameter to withstand the applied force because of their ability to absorb shock and vibration. SPIROL's standard duty Coiled Spring Pins are offered in both metric (conforms to ISO 8750 and ASME B18.8.3M) and inch (conforms to ASME B18.8.2) sizes.
SPIROL’s heavy duty & fatigue resistant Coiled Spring Pins are available in diameters ranging from 1.5mm (.062") up to 20mm (.750"). Standard materials include high carbon steel, 302/304 nickel (austenitic) stainless steel, and 420 chrome (martensitic) stainless steel. Diameters larger than 12mm (.500") are available in 6150 alloy steel.
SPIROL invented the Coiled Spring Pin in 1948. Coiled Pins are available in light duty, standard duty and heavy duty to match the required strength and flexibility for each application. A pin too strong for the applied load will not flex and may damage the hole. A pin that is too flexible may fatigue prematurely within the assembly. The Coiled Pin with the optimal balance of strength, flexibility and diameter will result in the prolonged useful life of the assembly.
SPIROL invented the Coiled Spring Pin in 1948. Truly an engineered fasteners, the Coiled Pin is available in three duties, light, standard and heavy, to enable the designer to choose from the optimum combination of strength, flexibility and diameter to suit different host materials and application requirements. Their shock absorbing design dampens forces and vibration to prevent hole damage and prolong assembly life.
Light Duty Coiled Spring Pins are generally recommended for soft, brittle or thin materials such as plastics, aluminium, die castings, ceramics, and where holes are located close to an edge of the assembly. In situations not subjected to significant loads, such as when used purely for alignment or as an axle, light duty Coiled Pins are often used because of easy installation resulting from lower insertion force.
While Coiled Spring Pins are extremely versatile self-retaining fasteners that can be used for many different functions, SPIROL has designed several series of Coiled Pins to meet the nuances and performance requirements of some particular niche applications. These Coiled Spring Pins are variations of our standard product either manufactured from special material, have a special finish or undergo specific processing to meet performance, corrosion, compatibility and assembly requirements for the specific application. These pre-designed application-specific series of Coiled Pins help companies shorten the design cycle to confidently launch their product quickly to their market with a pinning solution that has been tested and proven within their assembly.
SPIROL's Series 100 Key Fob Coiled Spring Pins were designed specifically to secure the key to the fob. The advantages of these high-performance automotive key fob security pins are as follows: Increased productivity, easy and trouble-free assembly, and simplified logistics.
SPIROL's Series 101 Headrest Coiled Spring Pins were designed specifically for use in automotive headrest assemblies. The advantages of SPIROL's headrest pins are as follows:
• Absorbs shock and vibration
• Increased productivity
• 100% dimensional control
• Accommodates wide hole tolerances
• Easy to install
• Simplified logistics
• Global supply
SPIROL's Series 102 Coiled Spring Pins were designed specifically for use in automotive transmission assemblies. These transmission pins are available in standard and heavy duty to enable the designer to choose the optimum combination of strength, flexibility and diameter to suit different host materials and application requirements. All Series 102 transmission pins are 100% dimensionally controlled for consistency during assembly. Additional advantages include:
• Absorbs shock and vibration
• Easy, trouble free assembly
• Ideal for automatic installation
• Global supply
The Series 550 Cosmetic Coiled Pin was designed specifically for cosmetic cases to ensure the perfect balance of strength and flexibility. The 1-1/2 coil construction ensures that the Cosmetic Coiled Pin exerts sufficient radial force to achieve the long-term desired swing torque while protecting the plastic from excessive stresses.
The use of SPIROL Series 550 Cosmetic Coiled Pin will simplify your design and manufacturing process. Uniform radial spring force results in controlled hinge movement and a hinge quality that remains consistent over time. Controlled hinge movement is achieved with wider tolerances and lower moulding costs than when a Solid Pin or cut wire is used. Finally, low insertion force and compression of the pin during installation minimises hinge stress and scrap. The net result is the prolonged useful life of the assembly.
SPIROL's Series 880 Coiled Spring Pin was designed specifically for use as the hinge pin for PC board card lock and ejector clip mechanisms. The quality of the hinge is unsurpassed by other fastening methods due to the low insertion force and compression of the pin during and after installation. As with all Coiled Spring Pins, the Series 880 hinge pin for PC board card locks and ejector clips is self-retaining, and thus no secondary processes are required for retention. The Coiled Pin's uniform radial spring force results in a controlled hinge movement that remains consistent throughout the life of the assembly.