COMPATIBILITY: The pool pump bolt kit fit for all pentair whisperflo pool and spa parts, seal plate kit includes motor bolts, seal plate bolts，impeller screw washer and diffuser screws. WATER PUMP BOLTS: Water pump bolts are used to securely mount the water pump to the engine block. Prevent Vibration and Loosening and help the water pump smooth and efficient operation. REPLACE YOUR BOLTS & SCREWS: Upgrade your pool pump bolt kit when they corrode, begin to loosen leaks or damage to the water pump and engine. PREMIUM QUALITY: The hardware bolt assembly for the pool pump is fabricated from high-quality stainless steel, providing resistance to moisture, corrosion, and wear, thereby ensuring a long-lasting and durable lifespan. PLEASE NOTED: Quality assurance is our primary condition for customer service and if you have any problems with our hardware screw pls contact us Hardware Assembly Include Motor Bolts