Koah 9/32 in Threaded Speargun Shaft

Overview

The Koah 9/32 in Threaded Speargun Shaft is a replacement shaft for spearguns configured for a 9/32 in shaft and a compatible removable terminal spear tip. The correct shaft length depends on the speargun and its original shaft-and-tip setup.

Construction

Koah makes the shaft from centerless-ground 17-4PH stainless steel, then machines and heat-treats it in-house. Centerless grinding reduces larger-diameter stock to the finished shaft size, a process Koah uses to maintain accurate diameter while removing imperfections and stress points from the original stock.

Fit and care

The threaded end must be matched with a compatible terminal tip, and replacement length should be confirmed against the original shaft specification or the appropriate gun-specific shaft guidance. After diving, rinse the shaft with fresh water and dry it before storage. Stainless steel is corrosion-resistant rather than corrosion-proof, so occasional application of a light silicone oil can help with routine maintenance.