I have been using FastenMaster's GuardDog screws for a while now and HIGHLY recommend them. I have ordered and used other square head screws from other manufacturers (some very famous) and nothing compares to these screws. First, their coatings don't clog the square shank at the top of the bolt head like one particular vendor does. Also, the head is a square/Phillips combo bit (included) which is even stronger, although I usually only use the #2 square bit, but you have three choices. I've used several different lengths for projects ranging from building a patio, porch, expanding rooms into my workshop for storage, and many, many other projects that aren't that big. As for the price, I think this product is very competitive and worth every penny.
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