Manual/Spec Sheet Notes: For #6 Studs that are too wide, the corresponding #4 Stud will still fit. (264) 65-1044 #6 Stud 16-14Awg Ring will not fit. It is too wide. Substitute with (264) 65-1043 #4 Stud 16-14Awg Ring. (264) 65-2564 #6 Stud 12-10Awg Fork will not fit. It is too wide. There is no #4 Stud 12-10Awg Fork equivalent. (264) 65-2064 #6 Stud 12-10Awg Fork will not fit. It is too wide. There is no #4 Stud 12-10Awg Fork equivalent. Similar to: Radio Shack 274-658 Additional Model #'s 70-13-1404 70-131404 13-1404 131404 UPC: 038975134048