Threebond Nut Lock, Fix & Seal Medium Strength 50gm TB1324TB1324 is an anaerobic reactive adhesive sealant which cures spontaneously when sealed off from contact with the air between close fitting metallic surfaces. It has been specially developed for locking and sealing threaded parts and fittings with medium strength when cured, for studs, bolts and bearings particularly where disassembly may be required using hand tools.