Light and strong. A grade 5 titanium 1/4-28 non-serrated lug nut with the standard 1/2 in head, most commonly run on go karts and quarter midgets but at home on any hub already turning 1/4-28 wheel studs.This is the direct swap for the steel 1/2 in head nut, same wrench, same torque spec, roughly 40 percent less weight. At 4.8 g each the savings land on the outer edge of the rotating assembly, so the engine spends less of itself spinning the wheels back up every time you get out of a corner.Grade 5 titanium brings the strength to survive the shock loading a lug nut sees, plus natural corrosion resistance, so the nut backs off cleanly at the end of the year instead of galling onto a rusty stud. Material: grade 5 titanium Thread: 1/4-28 Head: 1/2 in Style: flanged, non-serrated Torque spec: 8 ft-lbs Weight: 4.8 g Sold by the piece, so order the count you need for a full set. Studs are sold separately. If you want to take out more rotating weight, the same nut is offered with a lighter 7/16 in head.