New Carbon Steel Encore Forend Screws with. T/C Thompson Center Arms. These are for Tapered Rifle & Pistol Barrels that require two DIFFERENT LENGTH 8-40 screws. These are new, Fillister Head, hardened, stainless steel gun screws. These Screws have Torx style heads that are much easier to install and remove than slotted or phillips head screws. Great when changing barrels! This is a set of two screws with washers, as pictured. Thompson Center recommends the use of washers when installing forends. They will fit factory forends and most aftermarket forends that require a two DIFFERENT LENGTH screws of 7/16″ and 3/4″ lengths. Check the forend screw holes in your barrel. If the front hole is shorter than the rear hole you need the screw set with one long and one short screw. If both holes are the same depth then it requires two of the same length screws, which I also have available. To see all of my screw listings. Please note that the Encore Pro-Hunter, shotgun barrels and 209 x 50 barrels require a different screw set. (stock, forestock, fore stock, forend, fore end, foreend).