Fastex Shock Cord Hook 5/16" Acetal Black offers a durable, molded plastic fastener designed to fit 5/16-inch shock cords without the need for metal crimp rings. Made from corrosion-resistant acetal, this black hook resists rust, salt water, and all weather conditions, ensuring reliable use in outdoor, marine, and awning applications. Its smooth, non-marring surface protects attached materials from scratches while providing a secure hold, making it an effective and weather-resistant cord fastener for bungee and elastic cords in a variety of outdoor settings.