This plastic angled base (Eval 00663) is designed to facilitate mounting tube structures at a slant, where standard straight (90°) bases would not provide the correct alignment. The 60° angle makes it especially useful for installation on inclined surfaces – for example, the gunwales of a boat which often slope outward, or consoles and cabin roofs where grab handles need to be at a comfortable angle. With this base, the attached tube will exit at a 60° angle relative to the mounting plane, ensuring an ergonomic layout of your rail or frame.
The base has compact dimensions of 91×40 mm, allowing installation even in tight spots. Despite its small size, the flat part of the base is wide enough to secure firmly – it comes with pre-drilled holes for screws. It’s recommended to use stainless steel screws for mounting to ensure the joint’s longevity. When properly fastened, the base can handle significant loads in tension and compression, such as wind force on a canopy or pressure on a grab rail.
Construction and materials: The plastic (typically nylon or ABS) is reinforced and impact-resistant, which is important in marine conditions. It won’t crack under vibration or sudden stresses. The material is UV-stabilized – the base can remain in direct sunlight for years without becoming brittle or discolored. Additionally, the plastic is inert to water, fuel, or oils, so its structure won’t be compromised by incidental contact with gasoline or cleaning chemicals.
Usage examples:
- Bimini tops and canopies: Use this 60° base to anchor the front or rear support poles of a bimini top when they need to attach to an angled surface like a windshield frame or sloping gunwale. It provides the proper lean for the canopy and stability when the canvas is under tension.
- Inflatable boat railings: Many RIBs and inflatables have a tapered bow or curved tubes. With this base, you can attach a grab rail/handrail that follows the boat’s shape and is comfortable for passengers to hold onto.
- Cabin handles and handholds: In boat cabins or cockpits, you often need to mount handles at an angle so they are accessible yet out of the way. This base allows you to put auxiliary grab handles on stairways, angled ceilings, or side walls securely.
- Framing for equipment: If you are building a frame for a solar panel, radar arch, or other accessory at an angle – using these 60° bases with Ø22 mm tubing will give you the necessary tilt and support.
Installing the Eval 00663 is straightforward: mark the positions of the base’s holes on the surface, drill pilot holes (if not already present), position the base and fasten it with stainless hardware (screws or bolts with nuts and a backing washer on the reverse side for reinforcement). Ensure the base sits flush, especially if the surface has a slight curve – you can use a suitable sealant or shim to eliminate any gap. After mounting, slide or insert your Ø22 mm tube into the socket; it should fit snugly. There is a provision for a set screw to lock the tube in place if needed to prevent any rotation.
With this angled base, you’ll achieve a secure and durable mounting point for your railings and structures, giving a professional finish to your installation work and ensuring your equipment is held at just the right angle for function and aesthetics.



