Paragraph Number

171

Referring to FIGS. 87-90, the fastener 1040 can be a thumb screw having a cap 1052 and a shank 1054. The cap 1052 may have a relatively large diameter as compared to the shank 1054. The cap 1052 may fit over a head 1056 of the shank 1054 by way of an interference or friction fit. In one embodiment, the shank 1054 may include external threads that engage within an opening 1044 of the inferior grip plate 1038 or body 1006. In one embodiment, the shank 1054 includes a drive recess 1058. As desired, a user may remove the cap 1052 and use a driver (not shown) to apply high torque to the shank 1054 to increase a compression force on the superior grip plate 1036 and/or inferior grip plate 1038.

Added by DJM 9 2021