Lewmar Ocean 40 Hatch 19-1/8" x 19-1/8"The Lewmar Ocean series hatch features a classic style that is fitted to countless boats around the world. The rugged construction provides a tight seal to keep the elements out. This boat hatch is constructed with an anodized aluminum frame for excellent corrosion resistance in marine environments. Whether for ventilation or to cool off, the hatch friction levers can hold the lid open in any position up to 95. Lewmar's Ocean hatch is suitable for CE area 2, including decks, coachroofs, cockpits, and transoms.Product Feature: Smoke Gray Acrylic; Anodized Aluminum Frame; Suitable for CE Area 2; Friction Levers; Ocean Series - Flat BaseNOTE: Flat base hatches cannot be used with Trim kits or Roller shadesSpecifications: Length: 19-1/8"; Width: 19-1/8"; Height: 1-9/16"; Radii: 2-15/16"; Hinge Length: 3/16"; Hinge Width: 11-3/4"; Cut-Out Length: 16-3/8"; Cut-Out Width: 16-3/8"; Cur-Out-Radii - 1-9/16"; Ocean Series - Flange BaseSpecifications: Lower Frame: 1" Flange; Length: 19-1/8"; Width: 19-1/8"; Height: 1-9/16"; Radii: 2-15/16"; Hinge Length: 3/16"; Hinge Width: 11-3/4"; Cut-Out Length: 16-9/16"; Cut-Out Width: 16-9/16"; Cut-Out Radii: 1-11/16"; Mounting Instructions: Fit to a flat surface with a maximum tolerance of +/- 1mm; Fastening size at hinge section use M6 / 1/4"; Lower frame fastening size 5mm CSK No. 10 UNC 2 BA; Click here for Lewmar Ocean Series Hatch Fitting & Adjustment Instructions