Set of (2) 10.9 Class (metric equivalent to Grade 8) hardened, yellow zinc plated flange bolts, (1) prevailing torque flange lock nut and (1) flag nut for the rear track bar on all 1997-2006 Wrangler TJ's and LJ's. The flag nut is 10.9 Class hardened and yellow zinc plated. It is double the thickness of the OEM flag nut. A prevailing torque flange lock nut is welded to the bracket, not just press fit like the OEM ones were. The long bolt is used with the flag nut on the axle side. The short bolt with the flange nut is used on the frame side. This is the heaviest duty hardware available anywhere. Sold by a small business in the US.