12-Point Nut, Chrome Moly Black Oxide
7/16" UNF Thread, 1/2" Socket (10-Pack)

11available In A Variety Of Si zes To Suit Your Needs, All Ar p 12-point Nuts Are Constructe d From Aerospace Quality Mater ials And Meet Their High Stand ards Of Excellence. Rated 180, 000 Psi Tensile Strength.