The Pentair 355334 8-32 x 1" Hex Screw is a high-quality stainless steel screw designed for use with various Pentair pool and spa pumps. It is compatible with the Pentair Challenger Pinnacle high flow and high pressure inground pumps, the Pentair Sta-Rite SuperMax inground pumps, and the Pentair WaterFall specialty pool and spa pumps. This screw measures 1-1/8" in length, 3/8" in height, and 3/8" in width. It is a reliable replacement part that ensures secure and durable assembly of your pool or spa pump.