Loctite® 200™ Dri-Loc® Threadlocker is a dry-to-the-touch preapplied fill for threaded fasteners. It remains inert on the fastener until assembly of the threads releases a quick curing resin. The resin fills all the voids in the threads and cures to securely lock and seal the assembly. Suitable for phosphate and oil substrates only.> Preapplied Selector Guide