9/16"-18 J995 Grade 5 Hex Hi Nut Zinc Yellow 7/8" x 49/64" (150/Pkg.)

When you are looking for nuts that will provide a better wrench ability and prevent slippage, Hex Hi Nuts will get the job done. With a taller hexagonal face (twice as tall as Hex Nuts), it gives more surface to wrench in hard-to-reach socketed situations. These nuts can be found fastening a variety of applications, including suspensions in trucks and construction vehicles. Rockwell hardness of Rc 32 max Proof Load Strength Coarse Thread (UNC): 133,000 psi min (up to 1”) 116,000 psi min (over 1”) Proof Load Strength Fine Thread (UNC): 120,000 psi min (up to 1”) 105,000 psi min (over 1”) Taller nut to provide easy-access wrenching Prevents slippage or rounding out of the nut Twice the height of the Hex Nut Sizes range from 1/4” to 1 1/2” Meets SAE J482 standards