Which item is a threaded sleeve w/internal right hand threads&internal left hand threads?

Which item is a threaded sleeve w/internal right hand threads&internal left hand threads?

• A. barrel
• B. bolt
• C. cable terminals
• D. secured

Answer: (A)

Think about how a threaded sleeve functions. A sleeve that is threaded on the inside serves as a hollow connector, accepting another threaded piece. If it has internal threads in both directions—right-hand on one side and left-hand on the other—it can mate with fasteners or components that use opposite threading. That dual internal threading is what defines this part as a barrel in this context: a hollow cylindrical piece designed to accept two sets of internal threads. A bolt is a solid piece with external threads, so it isn’t a sleeve. Cable terminals and the item described as “secured” aren’t hollow threaded sleeves either, so they don’t fit. Therefore, the item that matches this description is the barrel.

Think about how a threaded sleeve functions. A sleeve that is threaded on the inside serves as a hollow connector, accepting another threaded piece. If it has internal threads in both directions—right-hand on one side and left-hand on the other—it can mate with fasteners or components that use opposite threading. That dual internal threading is what defines this part as a barrel in this context: a hollow cylindrical piece designed to accept two sets of internal threads. A bolt is a solid piece with external threads, so it isn’t a sleeve. Cable terminals and the item described as “secured” aren’t hollow threaded sleeves either, so they don’t fit. Therefore, the item that matches this description is the barrel.