A fifth lug in a meter box is typically used as a grounding point. It provides an additional connection for grounding conductors, ensuring that electrical systems are safely grounded to prevent electrical hazards. This extra lug can be particularly important for systems that require multiple grounding points or for compliance with local electrical codes. Proper grounding is essential for the safety and functionality of electrical installations.
1 Fifth of a metre is 20cm
1/5 of 1 meter = 20 centimeters.
meter
It is 1/4 of a metre
0.2sq metres or 2000cm2
20cm
20
20
the lug nut adapter is located in the trunk with your jack, spare, and lug wrench, if you have taken it to a shop they may have put the adapter in your glove box, its about twice the size of a lug nut.
A meter box is the metal box mounted to the external wall of a home that houses the meters, circuit breakers etc.
Your local gas company provider is responsible for your gas meter box.
Since a meter is 100 centimeters when you divide that by 5 you get 20 centimeters.