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warehouse |
Posted: Fri Aug 12, 2016 7:10 am |
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ORDER OF THE SKULL
Joined: 23 Jan 2004
Posts: 2014
Location: British Columbia
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It's time to replace the fasteners holding down our riding surface. Heads are popping and some have sheared off. We used conventional #8 Robertson 1 1/2" screed first time around. I would like to find something with threads all the way to the head, like a drywall screw. I need something stronger than a drywall screw though. I just skated a ramp that had GRK screws they look great. I'm looking into those. Any other suggestions? |
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skateight |
Posted: Fri Aug 12, 2016 9:52 am |
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ORDER OF THE SKULL
Joined: 05 Sep 2006
Posts: 2857
Location: Earth
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I've always used decking screws, never had any problems. |
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alldayphila |
Posted: Sun Aug 14, 2016 9:40 am |
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ORDER OF THE SKULL
Joined: 29 Jan 2010
Posts: 713
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Maybe hardie backer screws? |
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warehouse |
Posted: Mon Aug 15, 2016 7:13 am |
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ORDER OF THE SKULL
Joined: 23 Jan 2004
Posts: 2014
Location: British Columbia
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alldayphila wrote: Maybe hardie backer screws?
Those look promising. Great idea thanks.
We used deck screws in the original install. The problem with deck screws is, the threads don't go all the way to the head and the riding surface slides on the bare screw and comes loose....not sure if that makes sense?
I think the hardiest screws should do the job:) |
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jchan |
Posted: Wed Aug 24, 2016 1:26 am |
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Joined: 19 Apr 2005
Posts: 3009
Location: SE
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Threads all the way to the head won't help you if there is any space and wiggle room between the top surface, whatever you might have in between, and the wood beams. Over time of riding the screw heads will protrude the riding surface despite any threads. What you need is long enough screws and making sure you get the riding surface all the way down. I will not be able to help with any US specific brands but I know I'm not the only one who prefers a torx head, self drilling screw, with medium to large counter sunk flat head, they're usually a bit more expensive but once you go that route you won't look back. |
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warehouse |
Posted: Sat Aug 27, 2016 9:18 pm |
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ORDER OF THE SKULL
Joined: 23 Jan 2004
Posts: 2014
Location: British Columbia
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The GRK screws are torx. I think the biggest problem is the su layers are breaking down from too many Canadian winters. Hopefully we can hit joists with the new screws |
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skateight |
Posted: Sun Aug 28, 2016 1:18 pm |
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ORDER OF THE SKULL
Joined: 05 Sep 2006
Posts: 2857
Location: Earth
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What materials is your ramp made of?
That might help diagnose. |
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warehouse |
Posted: Sun Aug 28, 2016 9:15 pm |
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ORDER OF THE SKULL
Joined: 23 Jan 2004
Posts: 2014
Location: British Columbia
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2x6 joists, 2 layers of 1/2" ply |
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blueballs |
Posted: Fri Feb 17, 2017 7:52 pm |
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Joined: 02 Jun 2009
Posts: 511
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also on final layer shorter is always better |
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