Frequently Asked Questions

Find The Information You Need About Our Storm Window Clips

Storm window clips are the perfect tools when you're trying to secure your shutters against difficult weather. They can be used to secure residential and commercial properties, plywood, and more. Plylox is your source for high-quality clips for any application. Whether you've never used storm window clips before or you want to gain a thorough understanding of their finer details, you've come to the right place! Plylox is the expert on all things hurricane hardware. If you've got questions about our products, we can help! We hope you will be able to find the answers you're looking for below.

Yes, most polycarbonate panels are 5/8”. You will need to purchase the 5/8” PLYLOX™.

A average 4ft x 4ft window will need 2 clips on each vertical side spaced no more the 24” apart. For every additional 2 feet in height you will need to place another clip.

No, PLYLOX™ clip need at least a 2 ½” inset for them to grip properly.

No, most siding products do not leave a proper inset for the clips to work.

Yes and No. Our carbon steel clips will produce rust when left exposed in wet conditions for an extended period of time while our stainless steel clips will not.

Yes, however you will need to splice plywood together horizontally, and use 2x4 stiffeners on end horizontally across the span to reduce flex in your panels. 2x4 stiffeners should be seen on the outward facing part of the panel. 

Use at least a 12” wide piece of plywood to place over the seam of your two pieces of plywood you are joining together. Use a combination of wood glue and screws to join the assembly together making sure the screws are started from the backside of your panel. Refer to the drawing for screw pattern.

This just means that the skinny side (1-1/2”) goes up against the plywood.

No more than 8 feet, 2x4 stiffeners are recommended for spans any more than 4 feet wide.

There is a possibility that the clips will leave traces of scratching on any material.

You can find them at some major hardware stores. To find one near you please click here.

Yes, independent lab testing has been done on both our residential and commercial product. Test result can be provided if requested.

We can be reached at 1-800-583-4289 or via email at

Normal business hours are M-F 9a-5p. Unless a storm is approaching any of the coastal areas we try our best to be available to our customers from sunrise to sunset to be able to assist with question and process orders.

No, commercial only work on aluminum store front windows.

Please call the office direct at 1-800-583-4289.

Contact Us Today to Learn More About Our Hurricane Window Protection Solutions!

If you want to learn more about the excellent selection of storm window clips that Plylox can provide, our experienced team will be happy to help. We supply all kinds of hurricane hardware and window clips in different sizes, shapes, and materials. Contact us today to learn more about our residential and commercial hurricane window clips!

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