StrongHold™ Metal Locking Ties (IMLT) Panduit StrongHold™ Metal Locking Ties (IMLT) are designed to function in extreme environmental conditions. These ties are available in 304 and 316L stainless steel to deliver maximum performance and high strength. The StrongHold Metal Locking Ties feature a self-locking head design that speeds installation and locks into any place at any length along the tie body. These ties are ideal for indoor, outdoor, and underground applications. The StrongHold Metal Locking Ties are used in shipbuilding, oil, gas, solar, and industrial markets.