Illustrating R-6660-KH with Type T hinges and Type G Lift Handle Dimensions for R-6660, R-6661, R-6662, and R-6663 series castings. Dimensions for all R-6665 series bolted and gasket sealed castings. Illustrating R-6665-3KH with Type G Waterproof Lift Handles and Type R Stainless Steel Butt Hinges R-6665 series bolted castings can be furnished with either standard countersunk stainless steel flat head cap screws or with exposed hex head bolts. Non-gasketed castings are available without hinges, with Type T hinges, or with Type R butt hinges. Gasketed castings are available without hinges or with Type R butt hinges only. Frame Types for Heavy Duty castings.