DeckPac 875 1-7/8 in. ProTech Coated Trimhead Deck Screws with Marksman Pro and Driver Bit

It doesn’t really work for stair treads. First reason is that you can’t get the tool in the proper place due to stringers (they are in the way). Second, the necessary over hang in the front doesn’t allow use of the camp tool as the screws will not reach the stringers.

Yes they can. On my particular application though I used on CCA treated lumber. Expect shrinkage on your CCA lumber but with trex you want have this problem we’re I’ve used in past.

There are 875 screws in the box, I don't know about using a longer screw for the face screw.

Thank you for your CAMO question. When installing 5/4 pressure treated lumber (1" thick), we recommend using the CAMO 1-7/8" Edge Deck Screws. The 1-7/8" deck screws are designed for installing boards measuring 3/4" to 1" in thickness. If your deck boards measure more than 1" in thickness (1" to 1-1/2"), then we recommend you utilize the CAMO 2-3/8" Edge Deck Screws. Either length screw can be used with the CAMO Marksman Pro-X1 Tool. All the CAMO Marksman Tools will work with the CAMO Edge Deck Screws, regardless of screw length. Thank you for viewing this CAMO product! -Team CAMO

Thank you for your question! It's a good one. CAMO Edge Fastening has been extensively tested for uplift and thermal expansion/contraction by a third party lab, Architectural Testing Inc. in York, PA. We are certain CAMO will perform exceedingly well in conditions such as yours. Much of our field testing is conducted right at our corporate headquarters in Grand Rapids, MI where like Cincinnati, temps range from 90 degrees+ in the summer, to below 0 in the winter. CAMO Edge Fastening has been in the marketplace for 5 years now with great results. That being said, board movement in the exterior environment is always a factor for deck builders and can vary greatly depending on the type of decking material being installed. Fasteners also can vary in performance depending on size and alloy. As a best practice with CAMO Edge Fastening, stainless steel is always recommended. Our 316 Stainless Steel CAMO Screws have the ability to flex with the board movement more than carbon steel screws, thus allowing the deck board (specifically synthetic decking) to grow with heat and shrink with cold to a greater degree, and return without shearing. There are also recommended deck building practices that will help avoid excessive board movement if followed. • Make sure the underside of the deck has plenty of ventilation from the sides. Enclosing a deck and not allowing for cross ventilation will cause moisture and heat build-up that may cause excessive linear board movement (synthetics) and cupping and warping (wood products). • Fasten sufficiently according to CAMO installation instructions: This means two screws at every joist and at least 1" back from the board ends. This will mean that you should sister in a joist at each butt joint to allow for proper fastener spacing. This is a common recommendation in deck board manufacturer installation instruction. Hopefully this information helps. Feel free to call 800-968-6245 and speak with a CAMO Product Specialist directly if you have additional questions. Thanks for using CAMO! -Team CAMO

It is not required that you pre-drill when using the CAMO Hidden Deck Fastening System. However, when installing hardwood decking with Stainless Steel CAMO Hidden Fasteners, pre-drilling is recommended. Pre-drill Instructions are provided in all CAMO Marksman Tool Installation Instructions or can be found on camofasteners.com. There is also an Installation video on the CAMO Fasteners YouTube page titled "CAMO Hidden Fasteners - Hardwood" that will walk you through key points to remember when using CAMO to install hardwoods. The video also shows the best way to pre-drill hardwoods when using CAMO. Thank you for viewing this CAMO product! -Team CAMO

Yes, when using CAMO to install your deck boards at a 30 degree angle, the CAMO Marksman Pro Tool will need to be set twice on the board for each joist. With the board set at an angle, it will intersect each joist at two different points. You will need to position your tool over the deck board at each point where the joist and the deck board intersect. For additional information regarding this process, please view the CAMO Marksman Pro Tool installation instructions where how to use CAMO to install your deck boards on a 45 degree angle is discussed - the process with CAMO will be the same whether it is a 30 degree or 45 degree angle installation. You can also visit camofasteners.com or our CAMO Fasteners YouTube page for a step by step video showing the process. Thank you for viewing this CAMO product. -Team CAMO