Mettec Titanium Stop Adjuster Bolts have rolled threads and a bullet nose machined on the tip to help make maintenance easier. Mettec reccommends servicing torsion stops by cleaning and greasing threads to keep threads free running in stops. Titanium Jam Nut is the same wrench size as the hex on on bolt, so only need to carry one size wrench to adjust torsion bars. KIt Contains the following P/N'S 4ea.Ti 7/16-20 x 2" Bullet Nose with a 5/8" Hex Wrench Head 4ea. 7/16-20 Hex Jam Nut with 5/8" Hex Wrench Size