The ornamental design for a fastener, as shown and described.
This application is related to the following commonly owned co-pending patent application: U.S. application Ser. No. 16/115,797, entitled “Threaded Fastener”.
FIG. 1 is a bottom perspective view of a fastener of our new design.
FIG. 2 is an enlarged fragmentary bottom perspective view of the fastener of FIG. 1, and showing a bottom side of the head of the fastener.
FIG. 3 is an enlarged view of the fastener of FIG. 1 and shows a front side of the head of the fastener; the back side of the head of the fastener is a mirror image thereof.
FIG. 4 is an enlarged front view of the fastener of FIG. 1 and shows a right side of the head of the fastener; the left side of the head of the fastener is a mirror image thereof.
FIG. 5 is an enlarged top view of the fastener of FIG. 1; and,
FIG. 6 is an enlarged bottom view of the fastener of FIG. 1.
The broken lines and all unshaded areas adjacent to solid lines depict portions of the fastener that form no part of the claimed design.