Trunnion assembly

A trunnion assembly, comprising:

• a main body including at least two pivot-engagement sides located opposite each other, each of the at least two pivot-engagement sides including an attachment hole, each attachment hole including a threaded area and a counterbore, the counterbore having a depth and a diameter, the at least two attachment holes being generally coaxially located relative to each other;
• a fastener releasably attached to each of the at least two attachment holes, the fastener including a head and an at least partially-threaded shaft, the head having a diameter of a circumscribed circle which is larger than a diameter of the shaft;
• and
• a pivot tube disposed around each of the fasteners between the head and the attachment hole, the pivot tube including an inner diameter larger than the diameter of the shaft and an outer diameter smaller than a diameter of a circumscribed circle of the head of the fastener and smaller than the diameter of the counterbore,
• wherein the main body further includes a boss on each of the pivot-engagement sides that is coaxial with the attachment holes, the boss including a through-hole, and
• comprising a washer disposed on each of the fasteners between the head and the pivot tube, the washer including a boss with a through-hole, the outer diameter of the washer boss being smaller than the inner diameter of the pivot tube, and the inner diameter of the washer boss being larger than the diameter of the shaft and smaller than the diameter of a circumscribed circle of the fastener head.