Stainless Steel 316 Inspection Hatch Ø146 mm – Watertight Deck Cover

This stainless steel inspection hatch Ø146 mm provides a secure, watertight closure for deck or hull openings on your boat. Crafted from premium AISI 316 stainless steel with a mirror finish, it not only adds a sleek look but also withstands saltwater and harsh marine conditions without corroding. The lid features a rubber O-ring seal around the edge, ensuring that once screwed in place, it forms an absolutely leak-proof barrier – essential for protecting electronics, fuel tanks, or dry storage areas below deck. The self-cleaning thread design prevents sand and debris from jamming the closure, meaning the cover will unscrew smoothly even after extended use.

Usage & Advantages:

• Suitable for boats of all sizes where internal access is needed – fuel and water tanks, inspection bilges, or storage lockers. Its Ø146 mm outer diameter (110 mm clear opening) provides ample space to reach in for maintenance and inspection.
• Easy installation on deck or bulkhead – simply cut a circular hole and screw down the hatch (stainless steel mounting screws recommended, not included). The low-profile design sits nearly flush, preventing tripping hazards on deck.
• Ideal for both professional and DIY applications: Commonly used on motorboats, sailboats, and yachts to ensure dry compartments. It’s highly recommended for anyone needing quick access to equipment below deck (pumps, filters, sensors) while maintaining a watertight seal.