BLUE BULGE ACORN WHEEL LUG NUTS 3/4" HEX 1.38" TALL 1/2" THREAD PITCH SET OF 20 20pc Brand New Lug Nuts. Type: Medium Length, Closed End, Bulge Heat treated coating prevents oxidation and protects the Steel Seat Type: Cone / Conical Seat (60 Degree Taper) | Thread Pitch: 1/2" | Color: Blue Manufactured with the highest quality to meet or exceed OEM Standards Perfect for replacing rusted or broken lug nuts.