An agricultural vehicle includes a chassis, wheels supporting the chassis for moving the vehicle, an application boom coupled to the chassis and configured to deliver agricultural product to an agricultural field. The application boom has a boom arm including a longitudinal mount. In embodiments, the longitudinal mount includes a first projection, a second multi-lip projection, and a third projection. The second multi-lip projection has a first lip and a second lip. The agricultural vehicle further includes a first mounted attachment fastened to the first projection and the first lip of the second projection, and a second mounted attachment fastened to the second lip of the second projection and the third projection.