Outperforms Expensive Nyloc nuts, Maintains Clamp Loads under Severe Conditions

Nifty Lifts, Australia makes Hydraulic Lifts for forestry, mining and construction use. Base turn table of the lift holds boom & bucket and is subjected to severe vibrations, impacts & shear loads. 16mm structural bolts on the turn table loosened under these conditions. Nifty used nyloc nuts to prevent vibrational loosening of these bolts but even nyloc nuts failed to retain clamp load over long periods. Bolts had to be retorqued frequently; any premature failure can result in accidents.

Use of Loctite® 770 Allows Adhesion on Inactive Surfaces

A leading manufacturer of electric motors, geared motors, torque limiters, variable frequency drives, soft starters and more in Australia used PP capacitor boxes. Customer wanted to lock threaded plastic parts of these capacitor boxes made of Polypropylene. Customer tested competitive, general purpose adhesives but these fail to perform. PP is a low surface energy material and is difficult to bond.

Reduces Field Complaints

A leading manufacturer of small domestic appliances was using star washers to lock the yellow passivated M4 screw of top lid handle of domestic pressure cookers they were making. They had several field complaints of handle loosening over the usage period as the star washer not only failed to retain the clamp load but also was unable to accommodate difference in thermal expansion between dissimilar materials.

Avoids Field Failures and Protects Threads from Corrosion

LTM India is tyre processing machines manufacturer used nylock nuts to lock the heavy M16 bolts on the pci machines. However, the nylock nuts loosened due to heavy vibrations and thermal cycling that the tyre machines are subjected to. Loctite 243 medium strength threadlocker was recommended for this application. Loctite 243 does what nylock nuts can’t - they filll the gap between threads and locks the threads together - creating a unitized assembly that does not loosen under severe vibrations and thermal cycling.

Large Hotel Depends On Loctite® Threadlocker To Keep Doors Operational.

All commercial buildings have doors, and hotels have hundreds of them. Keeping them all fully operational is not an easy task. Every day these heavy metal doors are subject to high use, shock and tension, causing the screws holding the door hardware to come loose. Valuable maintenance time is spent tightening and re-tightening screws, realigning doors and replacing costly hardware. One major hotel chain looked to Loctite® for help.