parameter of EIX-BKR6-11,iridium,thread 14mm,reach 19mm (3/4"),hex size 16mm (5/8") , heat range 6, gap 1.1mm (0.44").
Match with NGK ,BKR6E,BKR6EVX,BKR6EIX
Match with DENSO, K20R-U,IK20
Match with BOSCH ,FR7DC,FR7DP,FR7DI
application chart for automobile,