Description Stainless Steel Lockable Deck Filler – Fuel, Straight Tail FEATURES 316G stainless steel. Cylinder lock made from marine grade stainless steel. Designed when locked the cap revolves freely but cannot be opened. O-ring seal. Cap retainer wire. 2 keys included. See the complete specifications of all deck fillers in the table below: PRODUCT PART NUMBER TAIL DIAMETER CUT OUT DIAMETER PROTRUSION INTRUSION FLANGE DIAMETER MOUNT SCREWS 29670 38mm (1-1/2″) 52mm 17mm 80mm 90mm 5mm c/s 29666 50mm (2″) 52mm 17mm 80mm 90mm 5mm c/s