Comparison : Item # CR-1/2-XBEC, CR-XBEC Eccentric Stud Crowned Hex Slot
Item # CR-5/8-XBEC, CR-XBEC Eccentric Stud Crowned Hex Slot
Item # CR-3/4-XBEC, CR-XBEC Eccentric Stud Crowned Hex Slot
Item # CR-7/8-XBEC, CR-XBEC Eccentric Stud Crowned Hex Slot
Item # CR-1-XBEC, CR-XBEC Eccentric Stud Crowned Hex Slot