"U" Channels Extruded [ Trapezoid Slot ]

* Long Leg 1/8' '

* One Leg Radial Outside. **Both Legs Radial Outside.

*One corner radial , one corner square

* Outside Leg Radius 3/32' '

*=Inside Base Corners 1/32 Radius Leg Ends 3/32 Radius **=Inside Base Corners 3/16 Radius Inside Leg Corners 1/8 Radius