For pocket-hole joinery in exterior applications, we offer these corrosion-resistant screws made of 305 stainless steel. They are suitable for natural and ACQ-treated lumber and offer superior long-term corrosion resistance in especially harsh conditions.
The washer-style heads have a large surface area to help reduce over-compression of wood pockets. The 1 1/4" screws are also available with a fine thread for use in hardwood. All have self-tapping tips and square-recess heads.