42mm is a standard socket. If you mean "what SAE socket fits," none of them do. BTW, what are you trying to get off that's got a nut that big on it?
SAE J475 is a specification for thread sizes on tubing. 38 may be a typographic error for a 3/8" thread.
Just a basic socket set SAE or metric depending on car.
My 93gmc z71 was 13/8 sae
The most common lightbulb socket sizes available for purchase are E26 (standard medium base), E12 (candelabra base), and GU10 (twist and lock base).
There are many sizes.
The most common bulb socket sizes for lighting fixtures are E26 (standard medium base), E12 (candelabra base), and GU10 (twist and lock base).
Spark plugs use SAE and not Metric. The one that fits it is the one that fits it.
No. They both have totally different pin sizes and amount of pins. Socket AM2 has a lot more pins, socket a has 462 pins.
The most common light bulb socket sizes available for purchase are E26 (standard medium base), E12 (candelabra base), and GU10 (twist and lock base).
Unsure exactly what it is that is being asked about. The part number of the switch, or the size of the socket used to install it. Whatever. . . it will be in millimeters, there are no SAE parts on the vehicle
Usually the size of socket comes in a socket set. Most common size is 5/8.