GRK ProPak 605 Composite Screw Kit Review

I bought a box (605) of these screws to install stone look foam board over my wood paneling. They were totally overkill for this application, but for tree-to-tree installation (e.g. for decking) they should be great. Best Features: - Counter thread on top: This helps push the deck to the base when you pull in the last part of the screw - Very small head: the smallest I could find for outdoor use. Very small holes remain - Does not split wood (on cheap pine moldings, but not on panelling) Cons:…

Had to replace Trex decking under their warranty (different story) and chose these screws for the decking. The kit included a T10 Torx bit. Screws work well by pulling the decking material into the hole with their rear threads on top of the screw. The torx bit that came with it turned out to be junk. It broke within the first ten screws. I grabbed one from a nearby box of screws and it soon came loose. After robbing all the beats I could find, the deck was complete. The higher quality bits had…

I have been using these for years and stock many sizes. I use them for making furniture/cabinets due to the size of the cutting head and they don't come off easily. I mainly use it to fasten decking boards. I usually pre-drill everything to better secure it. However, they hold very well and do not drill or "fungus" into the material surrounding the screw. I then hammer the material back into the screw hole to hide the screw even more. It amazes me that when after many years you need to loosen…