This Johnson 0.0279.033 end cover / cam screw is replaces Johnson 05-04-174 screws and is suitable for Johnson Engine cooling pumps:

As a cam screw on pumps that have the Johnson 01-45329 or 01-45670 cam plate:

F5B-9 pumps (10-24076-1, 10-24174-1, 10-24225-1, 10-24228-1, 10-24228-3, 10-24228-5, 10-24228-6, 10-24230-1, 10-24230-3, 10-24372-01 & 10-24461-01)

F6B-9 pumps (10-24232-1, 10-24232-3, 10-24232-5, 10-24232-6, 10-24232-7, 10-24234-1, 10-24302-01, 10-24316-01, 10-24412-01, 10-24412-02, 10-24432-01, 10-24432-02, 10-24493-01, 10-24493-02, 10-24562-01, 10-24562-02 & 10-24563-01)

As an end cover screw:

F7B-5001 pumps (10-24556-01 & 10-24071-99), F7B-50017 pumps (10-24556-02 & 10-24071-98)

F7B-8 pumps (10-24070-1, 10-24070-9 & 10-24070-10), F7B-89 pumps (10-24070-2), F7B-803 pumps (10-24070-3), F7B-893 pumps (10-24070-4), F7B-8001 pumps (10-24114-1), F7B-8007 pumps (10-24070-5 & 10-24070-51), F7B-8037 pumps (10-24070-7), F7B-8907 pumps (10-24070-6), F7B-8937 pumps (10-24070-8)

F7B-9 pumps (10-24126-2, 10-24127-1, 10-24244-1, 10-24280-2, 10-24338-01, 10-24338-02, 10-24349-01, 10-24386-01, 10-24390-01, 10-24398-01, 10-24398-02, 10-24428-01 & 10-24431-01), F7B-902 pumps (10-24127-3 & 10-24475-01), F7B-903 pumps (10-24126-1, 10-24126-3, 10-24127-2, 10-24218-1, 10-24244-2, 10-24280-1, 10-24305-01, 10-24329-11 & 10-24475-02), F7B-9000 pumps (10-24183-1, 10-24014-1 & 10-24014-5), F7B-9001 pumps (10-24014-2), F7B-9002 pumps (10-24014-3), F7B-9030 pumps (10-24014-4 & 10-24014-6)

This is a heavy duty screw with a brass construction.