Correct option is B
A
die nut is a type of
thread-cutting die that has the
shape of a nut and is used for
cleaning, repairing, or recutting damaged external threads on bolts, rods, or pipes.
Key Features of a Die Nut:
·
Nut-Shaped with Internal Cutting Edges:
· Looks like a regular nut but has
cutting edges to reshape or restore threads.
·
Used for Thread Repair:
· Helps
restore damaged or worn-out threads on bolts, studs, and screws.
