The Benefits of 420 Chrome Stainless Steel Coiled Spring Pins

In applications requiring a combination of high strength, superior fatigue life, and corrosion resistance, 420 martensitic chrome stainless steel offers a host of technical benefits and provides an overall robust cost-effective solution.

SPIROL Introduces Split Seam – Extra Clearance Compression Limiters 30-NOV-2020

SPIROL is pleased to introduce the new CL220 Split Seam – Extra Clearance Compression Limiter to their expansive product offering. This post-mold installed Compression Limiter has a flexible diameter to accommodate wide hole tolerances, while the seam is designed to prevent interlocking in the free state. The spring force generated during installation provides self-retention of the Limiter within the plastic assembly. Once installed, the CL220 provides a minimum clearance of 1mm over the bolt diameter; 0.5mm greater clearance than provided by SPIROL’s CL200 Split Seam Compression Limiter. The larger inner diameter (ID) also accommodates the protective coating of ArmorGalv®, a zinc alloy thermal diffusion coating that provides up to 1000+ hours of salt spray protection for highly corrosive applications such as marine, automotive, mining and industrial manufacturing. The benefits of ArmorGalv® include that there are no insignificant surfaces on the Limiter and the entire ID receives full coating and protection.

extra clearance limiters

Here is a link to the new CL220 Split Seam – Extra Clearance Compression Limiter specifications.

SPIROL offers a variety of formed and machined Compression Limiters to accommodate different compressive loads, positional tolerances and installation methods. Standard formed Compression Limiters include: Series CL200 Split Seam, CL220 Split Seam – Extra Clearance, CL350 Split Seam – Heavy Wall, CL400 Split Seam – Oval, CL460 Molded-In – Oval and the Series CL500 Molded-In designs. Standard machined options include: CL600 Aluminum and CL601 Headed Aluminum Compression Limiters, and the CL800 Brass and CL801 Headed Brass Compression Limiters.

Download the latest SPIROL Compression Limiters Design Guide for information about selecting the best Compression Limiter for your assembly!


SPIROL is a leading expert in fastening, joining and assembly. We are a technical resource that provides high quality components that improve the quality of your assembly, extend the life of your products and reduce your total manufacturing costs.

We are a global manufacturer of engineered fasteners, 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.

Contact SPIROL early in the design stage of your next project for complimentary Application Engineering Assistance!

Need help finding the right solution?

SPIROL offers complimentary Application Engineering support. We will assist on new designs as well as help resolve issues, and recommend cost savings on existing designs.