TFC Ltd. Datasheets for Thread Lockers and Retainers

Thread lockers and retainers render threaded fasteners immovable. They are used mainly with devices that are subject to transverse and axial loads that may lead to vibrational loosening.
Thread Lockers and Retainers: Learn more

Product Name Notes
Loctite 55 Can be safely applied on metal and plastics threaded fittings. Potable water: WRC listed for use with potable water up to 85°C, meets BS 6920. KTW recommendation for cold and...
Loctite 561 Convenient to use, no migration. Recommended for all coarse metal threads, where disassembly is required. Ideal for use in a broad range of industries including chemical processing, waste water treatment,...
Loctite 248
Loctite 268
Convenient to use, no migration. Suitable where product application access is difficult – overhead, under, or around machinery – on components that cannot be moved. Effective on all types of...
Loctite 668 Convenient to use. Suitable where product application access is difficult – overhead, under or around machinery – on components that cannot be moved. Recommended for all kinds of retaining applications...
Loctite 243 Effective on all types of metal threaded fasteners. Prevents loosening on vibrating parts such as pumps, motor mounting bolts, gear boxes or presses. Recommended for use where disassembly with hand...
Loctite 603 For retaining close fitting cylindrical parts (up to 0.1 mm gap). For use on cylindrical fitting parts where thorough degreasing is not possible. Tested and approved for use on bearings.
Loctite 2701 For use on all metal fasteners (including stainless steels and those with protective coatings such as zinc) where regular removal for maintenance is not required. Recommended for permanently locking studs...
Loctite 638 Gives best resistance to dynamic, axial and radial loads. Recommended for retaining shafts, gears, pulleys and similar cylindrical parts. KWT approval for cold and hot water. P1 NSF Reg. No.:...
Loctite 572 Recommended for all coarse metal threads where slow cure is required for adjusting the alignment of valves and fittings.
Loctite 577 Recommended for all coarse metal threads. Suitable for fast applications at low temperatures e.g. outdoor plant maintenance. Carries the German DVGW approval (NG-5146 AR 0621). Tested in accordance to EN...
Loctite 542 Recommended for fine threaded fittings as used in hydraulic and pneumatic installations and small fittings in general. Carries the German DVGW approval (NG-5146 AR 0855). Tested in accordance to EN...
Loctite 648 Recommended for high temperature retaining of parts with a clearance or interference fit i.e. retaining bushes, bearings, seals, fans, and liners.
Loctite 290 Recommended for locking preassembled fasteners, e.g. instrumentation screws, electrical connectors and set screws.
Loctite 222 Recommended for low-strength threadlocking of adjusting screws, countersunk head screws and set screws. Also use on low strength metals such as aluminium or brass which could break during disassembly. P1...
Loctite 641 Recommended for parts that will need subsequent dismantling i.e. retention of bearings onto shafts and into housings.
Loctite 5331 Recommended for use on threaded plastic or plastic/metal fittings carrying hot or cold water e.g. industrial and agricultural plastic water pipe systems, or drainage systems. WRC approved for use with...
Loctite 660 Used for repairing worn coaxial parts without remachining; enables re-use of worn bearing seats, keys, splines, tapers, or for retaining shims. P1 NSF Reg. No.: 123704