Built tough for performance and reliability, this offshore hatch series comes complete with silver anodised extruded aluminium frames. Heavy duty friction hinges hold the hatch open from 0° to 200° for maximum accessibility. A 15mm (19/32") deep internal flange allows for a quick, professional installation. The smoke-grey 10mm acrylic lid is UV stabilised for long life. All fastenings and screws are manufactured out of 316 stainless steel. Closing handles are fitted with a simple, effective security locking system on the inside to lock the hatch closed or in a ventilation position.