and flush pin-hex security screws

This sheet metal is extra thick

rinse with ambient water and dry prior to plating or painting

which can only be opened with the provided key

Nidec US Motors H50V3B Inverter Hostile Duty Motor, 50 HP, 3-Phase, 2400-1200 RPM, 230, 460V, 365T Frame Nominal Size-24" X 1.25" and flush pin-hex security screwsFeatures: 40 C ambient, 10: 1 speed range with variable torque, 5: 1 with constant torque Item: Hazardous Location Motor, Motor Type: 3 Phase, HP: 50, Nameplate RPM: 2400 1200, Voltage: 230 460, Frame: 365T, Enclosure: Totally Enclosed, Rotation: CW CCW, Hz: 60, Phase: 3, Service Factor: 1. 15, Insulation Class: F, Bearings: Ball, Base: Rigid, Shaft Type: Key, Shaft Number: 1, Shaft Length: 6. 13", Shaft Height: 9", Shaft Dia.: 2. 375", "C" Dim: 32.