A replacement 3/8-16 x 1-3/4 inch bolt for Pentair and Sta-Rite equipment applications. Hardware like this is often used to secure pump, filter, or equipment components where the original fastener has been misplaced, corroded, stripped, or damaged during service. Using the correct thread size and length helps maintain proper clamping force and reduces the chance of leaks, vibration, or incomplete assembly. This part is best matched by the manufacturer part number and the exact application in the equipment diagram. It is a practical replacement for repair work where original-style hardware is required rather than a generic fastener from a hardware bin. Replacement 3/8-16 x 1-3/4 inch bolt. Used with select Pentair and Sta-Rite pool equipment. Helps secure components during pump, filter, or equipment repairs. Useful when original hardware is stripped, missing, or corroded. Confirm U30-77SS and application fit before installation.