This kit is specific to XXX & Ti 22 wing trees with the 5/16 hole through the wing tree which connects the wing ram heim to the tree.
This kit a full kit to mount your top wing tree to the frame and includes a titanium sleeve designed for the ram heim which has a 3/8 OD so you can still run the 5/16 bolt through the wing tree and heim.
The 7/16 hex on both the bolts and nut keeps everything simple especially if all your wing tree bolts are 7/16 hex.
Kit consists of
4x 3/8 unf 3/4" long
4x 3/8 unf aircraft jet nuts
1x 5/16 unf 1 7/8" long bolt
1x 5/16 unf titanium nyloc nut
1x titanium 5/16" ID / 3/8" OD sleeve .495" wide
Socket size = 7/16