This round polypropylene inspection hatch with concealed mounting screws is designed to create a closable inspection or access opening in marine installations. The white hatch has an outer diameter of 182 mm and a clear opening of Ø 127 mm.
The hatch closes with a screw mechanism and is equipped with an integrated rubber O-ring. The construction is 100% waterproof and protects the underlying access opening against water ingress.
The mounting screws are concealed by the cover, so the fasteners are not visible when the hatch is closed. Installation is performed through six hidden screw holes with a diameter of 4 mm. The specified mounting cutout is Ø 138 mm.
The opening diameter of 127 mm and the mounting cutout of 138 mm describe different measurements: the opening diameter is the clear access through the hatch, while the mounting cutout is the hole in the mounting surface. Therefore, check both measurements before installation or replacement.
Key featuresRound inspection hatch with screw closure
Made of white polypropylene
Outer diameter: 182 mm
Clear opening: Ø 127 mm
Mounting cutout: Ø 138 mm
6 hidden screw holes: Ø 4 mm
Integrated rubber O-ring
100% waterproof construction
