Great for trailers and toolboxes. This bullet hinge is excellent quality and has a grease nipple for functionality. This bullet hinge is excellent quality and has a grease nipple to help with operation. This hinge is designed to have two tear drop components that can be fitted the same way up to make your trailer door of toolbox lid a lift of design or they can be inverted to make your door / lid fixed. Quite often camper trailer, caravan and boat fabrication work involving our range of hinging generally means you might also have a need for our extensive range gas struts, locks & handles, drawer slides, foam & rubber seals, fasteners and much more.