Which item is the grease gun fitting among listed connectors?

Which item is the grease gun fitting among listed connectors?

• A. Button head
• B. Flush type fitting
• C. Hydraulic zerk
• D. Grease gun fitting

Answer: (D)

Lubrication fittings are the interfaces used to inject grease with a grease gun. They are designed to accept the nozzle of a grease gun and usually contain a one-way valve so grease goes in under pressure and stays sealed otherwise. Among the options, the grease gun fitting is the one specifically meant to mate with a grease gun, making it the correct choice. A button head is just a type of fastener head, not a lubricant access point. A flush type fitting may exist in various contexts but isn’t inherently the grease gun connector. “Hydraulic zerk” isn’t a standard term for the grease gun interface.

Lubrication fittings are the interfaces used to inject grease with a grease gun. They are designed to accept the nozzle of a grease gun and usually contain a one-way valve so grease goes in under pressure and stays sealed otherwise. Among the options, the grease gun fitting is the one specifically meant to mate with a grease gun, making it the correct choice. A button head is just a type of fastener head, not a lubricant access point. A flush type fitting may exist in various contexts but isn’t inherently the grease gun connector. “Hydraulic zerk” isn’t a standard term for the grease gun interface.