With a unique oval thread and shank, as opposed to a standard round thread and shank, Tite-Fix says its Ova-Lok® screw resists anti-sealing moments.
Ova-Lok is suitable for fixing all types of material, including soft and hardwood; block – without a pilot hole; brick – with a pilot hole; as well as, plastic, thin plate steel and all types of fibre board.(…)
