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Washer assemblies for mounting panels to a support without damaging the panels include a countersunk washer and a sleeve. In one implementation, the washer assemblies are configured to at least partially prevent the formation of hoop stresses within a panel, and uniformly transmit forces created by

Washer assemblies for mounting panels to a support without damaging the panels include a countersunk washer and a sleeve. In one implementation, the washer assemblies are configured to at least partially prevent the formation of hoop stresses within a panel, and uniformly transmit forces created by a fastener to a panel. The washer assemblies can be configured to enhance the function, look, feel, or aesthetic of a panel system. In addition, systems of at least one implementation of the present invention include a plurality of panels mounted to one or more supports using one or more washer assemblies and methods of mounting such systems.

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1. A countersunk washer assembly for mounting an object, such as a decorative architectural resin panel having a visible outside surface, to a support structure comprising: a tapered sleeve configured in size and shape to receive therein a head of a fastener; anda countersunk washer including a top

1. A countersunk washer assembly for mounting an object, such as a decorative architectural resin panel having a visible outside surface, to a support structure comprising: a tapered sleeve configured in size and shape to receive therein a head of a fastener; anda countersunk washer including a top surface, an opposing bottom surface, and a cylindrical outer wall extending from the top surface to the bottom surface, the cylindrical outer wall having a substantially constant outer diameter between the top surface and the opposing bottom surface, the countersunk washer further having a tapered inner cavity configured in size and shape to receive the sleeve and the head of the fastener therein;wherein the countersunk washer is configured to hold the sleeve and fastener in a substantially flush configuration relative to the visible outside surface of the panel. 2. The assembly as recited in claim 1, wherein: the countersunk washer comprises one or more of a polycarbonate, a polyester, a copolyester, an acrylic, or mixtures thereof, and the sleeve comprises metal. 3. The assembly as recited in claim 1, wherein the tapered inner cavity of the countersunk washer further comprises a shelf configured to hold at least a portion of the sleeve and to prevent the sleeve from shifting relative to the countersunk washer. 4. The assembly as recited in claim 1, wherein the countersunk washer is transparent. 5. The assembly as recited in claim 1, further comprising an additional a washer configured to provide a barrier between the mounted object and a support structure. 6. The assembly as recited in claim 1, further comprising a cylindrical bushing configured to provide a barrier between a fastener and the mounted object. 7. The assembly as recited in claim 1, further comprising a standoff barrel configured to secure the mounted object to a support structure at an extended distance. 8. The assembly as recited in claim 1, wherein the sleeve is configured to be snap-fit within the tapered inner cavity of the countersunk washer. 9. The assembly as recited in claim 1, wherein one or more of the top surface and the opposing bottom surface of the countersunk washer comprises a beveled edge. 10. A panel mounting system, comprising: fastener configured to be secured to a support structure;a tapered sleeve configured to at least partially receive and surround the head of the fastener;a countersunk washer including a to surface, an opposing bottom surface, and a cylindrical outer wall extending from the to surface to the bottom surface, the cylindrical outer wall having a substantially constant outer diameter between the to surface and the opposing bottom surface, the countersunk washer further having a tapered inner cavity configured in size and shape to receive and hold the tapered sleeve and the head of the fastener in a substantially flush configuration; andone or more panels including a recess configured to receive the countersunk washer, the tapered sleeve, and the head of the fastener;wherein the tapered sleeve and countersunk washer are configured to at least partially transmit forces uniformly from the fastener to the one or more panels. 11. The system as recited in claim 10, wherein the countersunk washer is formed from the same material as the one or more panels. 12. The system as recited in claim 10, wherein the countersunk washer is formed from a material having substantially the same coefficient of thermal expansion as the one or more panels. 13. The system as recited in claim 10, further comprising a cap configured to be inserted within the recess of the one or more panels and cover the head of the fastener, the sleeve, and the countersunk washer. 14. The system as recited in claim 10, wherein the recess comprises a tapered through-hole. 15. The system as recited in claim 10, further comprising a back bushing configured to receive a portion of the countersunk washer positioned through the recess of the one or more panels. 16. A method of mounting a resin panel to a support structure, comprising: forming a through-hole having a first diameter in a resin panel;increasing the diameter of a proximal portion of the through-hole by forming a cylindrically-shaped counterbore having a constant outer diameter in the resin panel;inserting a countersunk washer into the cylindrically-shaped counterbore, the countersunk washer having a tapered inner cavity;inserting a sleeve within the tapered inner cavity of the countersunk washer;inserting a fastener through the sleeve, the countersunk washer, and the through-hole of the resin panel; androtating the fastener to tighten the fastener and secure the resin panel to the support structure;wherein the material and shape of the sleeve and the countersunk washer reduce the creation of hoop stresses in the resin panel during tightening of the fastener. 17. The method as recited in claim 16, further comprising positioning the proximal surfaces of the sleeve and countersunk washer in a substantially flush configuration with a surface of the resin panel. 18. The method as recited in claim 16, further comprising positioning at least a portion of the countersunk washer completely through the resin panel and into a bushing. 19. The method as recited in claim 16, wherein rotating the fastener comprises rotating the fastener relative to the sleeve and countersunk washer. 20. The method as recited in claim 16, further comprising inserting a cap within a receptacle of the fastener and positioning the cap in a substantially flush configuration with a surface of the resin panel.