- Fit to a flat surface with a maximum tolerance of +/- 1mm.
- Fastening size at hinge section use (M6 / 1/4").
- Fastening size for lower frame use 5mm CSK screw No.10 UNC 2 BA.
- Flat base hatches cannot be used with Trim kits or Roller shades
| Lower Frame (in) | Acrylic Colour | Hatch Weight (lb) | Acrylic Window Thickness (in) |
| Flat Base | Smoke Grey | 17.6 | 1/2 |
Dimensions
| Length X (in) | Width Y (in) | Height Z (in) | Radii R (in) | Hinge Length HX (in) | Hinge Width HY (in) | Cut-Out Length Flat X1 (in) | Cut-Out Width Flat Y1 (in) | Cut-Out Radii Flat R1 (in) |
| 22 5/8 | 22 5/8 | 1 11/16 | 3 | 3/16 | 14 7/16 | 19 3/4 | 19 3/4 | 1 9/16 |
