This is a simple parametric model of an S-Hook.  With the included .F3D file (compatible with Autodesk Fusion) you can easily adjust the size, thickness, opening size, and height of the hook.  The model shown is a .25" outer radius on both ends of the hook with a .2" thickness, .15" height, and .2375" opening.  I use this hook for hanging small parts I am painting, but you can use it for anything an S-Hook can be used for.