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8.5mm American Threaded

Our 8.5 mm American Mech Threaded Shafts come with 5 Sharkfin loading tabs. They are necked down to 5/16 to accept 5/16 Slip Tips. These 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 world wide.

Our 17-4 Stainless Steel shafts are heat treated to improve overall strength, resist bending, and minimize shaft whip. 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 closed track spearguns.

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