Eyelets in titanium (ASTM F136), 9/16" SF is backordered and will ship as soon as it is back in stock.
From Anatometal, these titanium single flared eyelets are machined from solid titanium (ASTM F136) for better durability and surface finish. 9/16" with 8.6mm between flare and o-ring groove. Sold as singles, buy 2 for a pair.
