Altus deck hatch 4633 Satin ne Sailing Hardware It features Lewmar’s unique sealing It features Lewmar’s unique sealing system Description Qty 45000505 50 54ST UPPER CROWN GY 1 45000509 50 54ST LOWER CROWN GY 1 45000508 50 54ST STRIPPER RING GY 1 45000525 50 54ST SPRING RETAINER 1 B0746 M6X50 SKT HD CAP SCREW The hatch can be kept open through 180° and in any position • Hatch can be opened from either the inside or the outside • Hatches can be shut completely water tight or secured with a small gap to allow ventilation • Internal locking mechanism ensures that hatch cannot be opened from the outside when the boat is left unattended