The Anahuac Mayab University is a private institution of Catholic inspiration founded in 1984.
They are used in the same applications as fender washers. A spherical washer is part of a self-aligning nut; it is a washer with one radiused surface, which is designed to be used in conjunction with a mating nut in order to correct for up to several degrees of misalignment between parts.
Square Box. The square box is the most common type of washers pit. The popularity of this pit is due to the simplicity of the design as well as ability to travel with the box and set up a game easily. The box can vary in size. The basic design calls for a 16x16 piece of plywood to be used as the base.