An indexing pin , comprising: a central axis ; a threaded portion , extending along the central axis ; a stem , extending along the central axis opposite the threaded portion , and having a stem dimension , measured perpendicularly to the central axis ; a cylindrical surface , extending along the central axis between the threaded portion and the stem , and having a cylindrical-surface diameter ; a tapered surface , extending between the threaded portion and the cylindrical surface ; and a flange , located between the stem and the cylindrical surface , wherein the flange comprises: a frustoconical flange surface , located between the stem and the cylindrical surface , and having a maximum frustoconical-flange-surface diameter and a minimum frustoconical-flange-surface diameter ; and a planar flange surface , extending from the frustoconical flange surface to the cylindrical surface , perpendicular to the central axis , and having a maximum planar-flange-surface diameter , equal to the minimum frustoconical-flange-surface diameter , wherein each of the minimum frustoconical-flange-surface diameter and the maximum frustoconical-flange-surface diameter are greater than the cylindrical-surface diameter , the frustoconical flange surface extends from the stem to the planar flange surface , and the stem dimension is equal to the maximum frustoconical-flange-surface diameter . a central axis ; a threaded portion , extending along the central axis ; a stem , extending along the central axis opposite the threaded portion , and having a stem dimension , measured perpendicularly to the central axis ; a cylindrical surface , extending along the central axis between the threaded portion and the stem , and having a cylindrical-surface diameter ; a tapered surface , extending between the threaded portion and the cylindrical surface ; and a flange , located between the stem and the cylindrical surface , wherein the flange comprises: a frustoconical flange surface , located between the stem and the cylindrical surface , and having a maximum frustoconical-flange-surface diameter and a minimum frustoconical-flange-surface diameter ; and a planar flange surface , extending from the frustoconical flange surface to the cylindrical surface , perpendicular to the central axis , and having a maximum planar-flange-surface diameter , equal to the minimum frustoconical-flange-surface diameter , wherein each of the minimum frustoconical-flange-surface diameter and the maximum frustoconical-flange-surface diameter are greater than the cylindrical-surface diameter , the frustoconical flange surface extends from the stem to the planar flange surface , and the stem dimension is equal to the maximum frustoconical-flange-surface diameter . a frustoconical flange surface , located between the stem and the cylindrical surface , and having a maximum frustoconical-flange-surface diameter and a minimum frustoconical-flange-surface diameter ; and a planar flange surface , extending from the frustoconical flange surface to the cylindrical surface , perpendicular to the central axis , and having a maximum planar-flange-surface diameter , equal to the minimum frustoconical-flange-surface diameter , wherein each of the minimum frustoconical-flange-surface diameter and the maximum frustoconical-flange-surface diameter are greater than the cylindrical-surface diameter , the frustoconical flange surface extends from the stem to the planar flange surface , and the stem dimension is equal to the maximum frustoconical-flange-surface diameter . <EOS>