When making a conduit-to-box connection and a bonding wire will be installed, by using a. grounding locknut.
Metallic couplings can be used for metallic conduit and they can be secured with set screws or via compression.
It should be noted that the threaded couplings screw onto couplings that have threaded ends will make it easier.
Nonmetallic couplings can be used for nonmetallic conduit which are usually attached with solvent cement, hence When making a conduit-to-box connection and a bonding wire will be installed, by using a. grounding locknut.
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