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CONCEALoc® Hidden Fastener

Designed exclusively for TimberTech grooved boards, CONCEALoc provides a fastener-free surface and can be installed pneumatically with the FastenMaster TigerClaw Gun or using a drill.

Visit your local dealer or retailer to see and learn more about this product.

Clean and Fastener-Free

Stays hidden to preserve your deck’s clean, finished appearance.

Efficient Installation

Whether pneumatically or with a drill, installation is smooth and easy.

Available in:

• 500 sq. ft. Gun Pail (900 clips, 925 collated carbon steel screws)
• TigerClaw Pneumatic Installation Tool
(sold by FastenMaster)

Hand Driven
• 100 sq. ft. (175 clips, 184 stainless steel screws)
• 1000 sq. ft. (1750 clips, 1840 stainless steel screws)

Questions About Installation?

We’re here to assist you with videos, guides, and more. View installation help.

Warranty Coverage

TimberTech products are engineered the right way, to last. And many are covered by industry-leading warranties. See full warranty details.

Are special tools required to install the CONCEALoc Hidden Fasteners?

No special tools are required for our hand-driven CONCEALoc Hidden Fasteners when using TimberTech® grooved planks — just a drill/driver. We provide a T15 star-drive bit with the screws and CONCEALoc clips. CONCEALoc Hidden Fasteners can also be installed with a pneumatic installation tool available through FastenMaster. Hand-driven CONCEALoc fasteners are available in 100 sq. ft. and 1000 sq. ft. stainless steel screws and clips. Pneumatic fasteners are available in a 500 sq. ft. gun pail with stainless clips and collated carbon steel screws.

Can CONCEALoc Hidden Fasteners be used on angles?

Yes, any angle up to 45 degrees can be achieved. On angles, offset the center of the fastener ½’’ towards the long point of the joist so the screw will not exit the side of the joist when driven. Reference our Installation Resources page.

Do the CONCEALoc and FUSIONLoc clips match the decking colors?

While CONCEALoc and FUSIONLoc clips are not color-matched to our decking, CONCEALoc (offered in Brown) and FUSIONLoc (offered in Black) are meant to blend in with the framing in the gaps between deck boards for a flawless, fastener-free surface.

Do I need to gap my boards when I’m using CONCEALoc Hidden Fasteners?

The CONCEALoc fastening system provides consistent spacing between the sides of the boards, but a deck spacer can be used in combination with the built-in spacing of the CONCEALoc clips. For end and butt joint spacing, please see the installation resources for instructions or this blog for more information.

What are the CONCEALoc Hidden Fasteners made of?

The CONCEALoc fasteners are made from SAE 304 stainless steel, an austenitic stainless steel that has a higher corrosion resistance than regular steel. The hand-driven screws are stainless steel, while the pneumatically driven screws are coated carbon.

Can I use CONCEALoc fasteners with steel or aluminum framing?

No, CONCEALoc fasteners are not compatible with steel or aluminum framing since the screw is driven at a 45-degree angle through the clip and into the joist.

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