Kreg Zinc Screws are a good choice for a wide variety of indoor projects with limited exposure to the elements. Available in a variety of sizes, and quantities.
Kreg Screws are case hardened, a process that forms a tough outer shell (or case) to make the screw durable, but keeps the core softer to prevent the screw from becoming brittle. That means you get the best of both worlds: a strong screw that won’t snap.
Coarse Thread screws are recommended for use with softwoods like pine, as well as for sheet goods such as plywood, particle board and MDF – that are soft and not very dense. Coarse screws have deep, aggressive threads that bite into those soft fibres to ensure solid holding power.