The PZP Series tapered plugs are designed to protect hydraulic and air-hose fittings, but are versatile enough to fit a variety of applications. The thick flange enables easy installation and removal. : : A: 1.040, B: 1.100, C:.62, D: 1.31, E:.97, HOLESZ(IN): 1-1/16, TOFITTHRSZ: -.