Perko Hinged Cover Bolt With Pin Nut And Washer 1/2in.And 3/4" Pipe Size. Get the Perko 0493DP599L Hinged Cover Bolt with Pin Nut and Washer for 1" and 1-1/2" pipe size units. These Boating & Marine from Perko are designed for easy installation and cleaning with features like mounting lugs on both sides of the strainer for universal mounting and a 316 stainless steel strainer basket to minimize electrolysis. This Perko Hinged Cover Bolt w/ Pin Nut and Washer comes with a limited warranty. Put the Perko Hinged Cover Bolt 0493DP599L to work for you with limited packaging. Features of Perko 0493DP599L Hinged Cover Bolt With Pin Nut And Washer 1/2in.And 3/4" Pipe Size Hinged cover bolt with pin nut and washer for intake water strainers Fits 1" and 1-1/4" pipe size units Packaging: Bagged Limited warranty included Package Contents: Perko 0493DP599L Hinged Cover Bolt With Pin Nut And Washer 1/2in.And 3/4" Pipe Size Perko 0493DP599L: Hinged Cover Bolt With Pin Nut And Washer 1/2in.And 3/4" Pipe Size