Installing Cortex Fasteners In PVC Trim

By Robert Robillard on Workshop tips

Concealing Your Fasteners Translates Into a Quality Job!

I just finished installing a bunch or PVC  trim around a garage door opening.   One thing I wanted to do was install the PVC securely and hide the fasteners.

Installing Cortex Fasteners In PVC Trim

I’ve used the The Cortex Concealed Fastening System many times before and have found that is is one of the fastest and easiest way to conceal the fastener heads when installing PVC trim boards.

It totally eliminates wood filler and sanding.  The cortex system comes with screws, plugs, and setting tools. Available in a 50, 250 and 750 lineal ft box.

Installing Concealed Fasteners:

You can use a drill, cordless drill or an impact driver for this installation.   The drill bit and driver are the same tool so the pre-drill step is eliminated.

For horizontal trim boards less than 12″ wide, use two Cortex fasteners at every framing member – rafter tail or wall stud. The screws should be 16″ on center or closer. If you are attaching a vertical trim board (i.e., next to a door or a window) use two Cortex fasteners every 16″ on center or closer.

If trim board is 12″ or wider, use three screws. Each trim board must be fastened within two inches of the end of each board.

Setting the Cortex Fastener

I used my DEWALT 20 v cordless impact driver and the Cortex setting tool. When driving the the Cortex fastener it will stop at a preset level below the PVC Trim surface.

Take care to drive the fasteners straight  /  perpendicular to the trim surface.

Once the fastener is installed simply place a tapered PVC plug into the hole and tap it flush.  I sometimes use the striking surface of my nail set to set stubborn plugs.


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About the author

Robert Robillard

Carpenter / Remodeler / Editor

Rob Robillard is “The Concord Carpenter” Rob is a builder, general contractor, carpenter, woodworker, and editor of Concord Carpenter and ToolBoxBuzz As a General Contractor and carpenter, Rob owns and operates Concord Carpenter LLC. A full-service remodeling and construction company. Rob is a recognized leader in home building best practices and a source for how-to information for building professionals. On this website, Rob covers all aspects of home construction, building science, home improvement, woodworking, remodeling, and some of the best product and tool reviews. Rob is in charge of our Tool and Product Review series - Concord Carpenter Videos where we post all of our tool reviews and video tutorials. Rob approaches remodeling and building construction with a pragmatic and problem-solving approach. He enjoys using his knowledge and experience to help and educate building professionals as well as DIYers on best practices in the construction and remodeling industry. He's a strong advocate for "raising the bar" in the construction trades and promoting the trades to youth. #BeAMentor #Green2Great Craftsmanship, quality, and pride guide his journey on this channel The Concord Carpenter's motto: "Well done is better than well said!" : Read more about Rob

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