Our 8.5 mm American Mech Threaded Shafts come with 5 Sharkfin loading tabs. They are necked down to 5/16-24 thread to accept 5/16 Slip Tips. These Aircraft Quality, Centerless Ground, 17-4 Stainless Steel Shafts are the finest quality shafts being produced and are the OEM shaft of choice for many of the top speargun manufacturers and custom gun builders around the World.
Our 17-4 Stainless Steel shafts are precisely heat treated to improve overall strength, resist bending, and minimize shaft whip. Every shaft is not only incredibly straight, they are individually balanced to promote more accurate shots.
We design them to fit the more popular American mechanism spearguns (Riffe, Wong, Hatch, Koah, Kap, Blacktip, Impaler, Deathstick, as well as any custom gun using Neptonic, Alexander, Kitto and Speardiver triggers.) Our smooth Sharkfins work great in both open and enclosed track spearguns.