Spool head thumb screw

Description

FIG. 1 is a bottom perspective view of a spool head thumb screw.

FIG. 2 is a top perspective view of the spool head thumb screw of FIG. 1.

FIG. 3 is a side elevation view of the spool head thumb screw of FIG. 1.

FIG. 4 is a bottom plan view of the spool head thumb screw of FIG. 1; and,

FIG. 5 is a top plan view of the spool head thumb screw of FIG. 1.

Claims

The ornamental design for a spool head thumb screw, as shown and described.