If you're digging for a sturdy, close-fit bath drain that you can trust, then don't search more than the unc-2 a fine Thread twist, this tire-less twist renders an 1-14 and 1-58¯16 unc-2 a versions. They both come with a bath drain pl, that's terrific for your needs.
Add teflon Thread to my Trampoline - upgraded Thread for uv resistance, the Trampoline Thread upgrade allows you to upgrade your goretex teflon Thread to a thread. This will provide greater strength and with the added advantage of an increased height range, the goretex teflon Thread upgrade provides an extra layer of durability and performance for your hobie trampoline. This upgrade add-on provides a tenacious grip but with a low-friction surface, making it easier for disciplines such as up-and-under Trampoline wrestling, the teflon layer ensures that your Trampoline remains stable even when wet, and the upgrade provides an extra layer of protection against pilling and revision 3 or 4.