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Old 05-07-2009, 05:57 PM   #1
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how to attach composite deck to steel


I built a steel frame boat dock. I want to construct the deck with composite material. Are there self-tapping bolts or screws that will penetrate the composite material, drill the steel (1/8") material and sink the head into the composite?

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Old 05-07-2009, 07:41 PM   #2
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how to attach composite deck to steel


Ayuh,... You might have to pre-drill the boards, but, Ya that's Real Doable....

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Old 05-31-2009, 07:39 PM   #3
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how to attach composite deck to steel


The screws your referring to are called tapcons they have a drill bit like end.
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Old 05-31-2009, 08:45 PM   #4
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how to attach composite deck to steel


I hope that the steel boat dock is Galvanized.

Aside from that, generally, when attaching wood/composite finish stock/framing/deck boards - to a steel frame, the process is to install (solidly through mechanical fastening) a wood sub-frame at 16" OC. - to the Steel frame.

In this case, you would use Pressure Treated stock for the subframe material.

Then, the finish wood/composite product/deck boards - are attached to that, using conventional SS deck screws.

Also: You need Stainless Steel fine-thread fasteners/lags/threaded bolts - to attach the PT wood subframe to the galv. steel framing.
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