This is Great Planes' 1/4-28 Brass Heavy Spinner Nut.
Heavy brass construction.
Great for adding weight to tail heavy aircraft.
Satisfies AMA's safety requirement for spinners.
Comes in a Parts-Pak clear plastic box with resealable lid.
One year quality guarantee.
Includes: (1) Brass Heavy Spinner Nut
Weight: 2.5oz (71g)
Shaft Size: 1/4-28