Patent Publication Number: US-D957180-S

Title: Screw shaft element

Description:
FIG. 1  is a perspective view of the first embodiment of the screw shaft element showing of our new design; 
         FIG. 2  is a front view thereof; 
         FIG. 3  is a back view thereof; 
         FIG. 4  is a left view thereof; 
         FIG. 5  is a right view thereof; 
         FIG. 6  is a top view thereof; 
         FIG. 7  is a bottom view thereof;   
         FIG. 8  is a perspective view second embodiment of the screw shaft element showing our new design; 
         FIG. 9  is a front view thereof; 
         FIG. 10  is a back view thereof; 
         FIG. 11  is a left view thereof; 
         FIG. 12  is a right view thereof; 
         FIG. 13  is a top view thereof; and, 
         FIG. 14  is a bottom view thereof.  
       The broken lines in the drawings illustrate portions of the screw shaft element and form no part of the claimed design.