![RAM Mount Square Post Clamp Base 4" Wide w\/1.5" Ball [RAM-247U-4]](https://cdn11.bigcommerce.com/s-foqppds5jw/images/stencil/1280x1280/products/26464/36114/75145XL__13919.1720734127.jpg?c=1 "RAM Mount Square Post Clamp Base 4\" Wide w\/1.5\" Ball [RAM-247U-4]")
![RAM Mount Square Post Clamp Base 4" Wide w\/1.5" Ball [RAM-247U-4]](https://cdn11.bigcommerce.com/s-foqppds5jw/images/stencil/500x659/products/26464/36114/75145XL__13919.1720734127.jpg?c=1 "RAM Mount Square Post Clamp Base 4\" Wide w\/1.5\" Ball [RAM-247U-4]")
Square Post Clamp Base 4" Wide with 1.5" Ball
The RAM-247U-4 is a clamp base with 1.5" rubber ball that will connect to rails up to 4" maximum in width.
Features:
- Material: Powder Coated Marine Grade Aluminum
- Ball Size: C Size 1.5" Rubber Ball
- Note: The "U" in the part number reflects product packaged in poly bag.
- Weight: 1.17 lbs.
![RAM Mount Square Post Clamp Base 2.5" Wide w\/1.5"Ball [RAM-247U-25]](https://cdn11.bigcommerce.com/s-foqppds5jw/images/stencil/500x659/products/26462/36112/75143XL__93283.1720734120.jpg?c=1 "RAM Mount Square Post Clamp Base 2.5\" Wide w\/1.5\"Ball [RAM-247U-25]")
![RAM Mount Square Post Clamp Base 2" Wide w\/1.5"Ball [RAM-247U-2]](https://cdn11.bigcommerce.com/s-foqppds5jw/images/stencil/500x659/products/26461/36111/75142XL__90143.1720734117.jpg?c=1 "RAM Mount Square Post Clamp Base 2\" Wide w\/1.5\"Ball [RAM-247U-2]")
![RAM Mount Square Post Base Clamp 5" Wide w\/1.5" Ball [RAM-247U-5]](https://cdn11.bigcommerce.com/s-foqppds5jw/images/stencil/500x659/products/26465/36115/75146XL__79626.1720734130.jpg?c=1 "RAM Mount Square Post Base Clamp 5\" Wide w\/1.5\" Ball [RAM-247U-5]")
![RAM Mount Square Post Clamp Base 3" Wide w\/1.5" Ball [RAM-247U-3]](https://cdn11.bigcommerce.com/s-foqppds5jw/images/stencil/500x659/products/26463/36113/75144XL__61810.1720734123.jpg?c=1 "RAM Mount Square Post Clamp Base 3\" Wide w\/1.5\" Ball [RAM-247U-3]")
![RAM Mount RAM Square Post Clamp Base f\/Posts up to 4" Wide [RAM-D-247U-4]](https://cdn11.bigcommerce.com/s-foqppds5jw/images/stencil/500x659/products/26645/36443/88521XL__63921.1720734751.jpg?c=1 "RAM Mount RAM Square Post Clamp Base f\/Posts up to 4\" Wide [RAM-D-247U-4]")
![RAM Mount Square Post Clamp Base f\/Posts Up To 1.5" Wide [RAM-247U-15]](https://cdn11.bigcommerce.com/s-foqppds5jw/images/stencil/500x659/products/26460/36110/75140XL__54130.1720734114.jpg?c=1 "RAM Mount Square Post Clamp Base f\/Posts Up To 1.5\" Wide [RAM-247U-15]")
![RAM Mount Square Post Clamp f\/Posts Up to 4" Wide w\/Arm [RAM-101U-247-4]](https://cdn11.bigcommerce.com/s-foqppds5jw/images/stencil/500x659/products/26528/36230/79797XL__79256.1720734352.jpg?c=1 "RAM Mount Square Post Clamp f\/Posts Up to 4\" Wide w\/Arm [RAM-101U-247-4]")
![RAM Mount 1.5" Max Width Square Rail Base w\/1" Ball [RAM-B-247U-15]](https://cdn11.bigcommerce.com/s-foqppds5jw/images/stencil/500x659/products/25768/34845/45563XL__77325.1720731833.jpg?c=1 "RAM Mount 1.5\" Max Width Square Rail Base w\/1\" Ball [RAM-B-247U-15]")
![RAM Mount 3" Max Width Square Rail Base w\/1" Ball [RAM-B-247U-3]](https://cdn11.bigcommerce.com/s-foqppds5jw/images/stencil/500x659/products/25771/34848/45567XL__58985.1720731840.jpg?c=1 "RAM Mount 3\" Max Width Square Rail Base w\/1\" Ball [RAM-B-247U-3]")