Design combines washer and lock nut. Helps reduce installation time by up to 42%. Installs anywhere along all threaded rod (ATR). Eliminates threading hex up the length of ATR. Easily removed and adjusted. Ideal to retro-fit a trapeze without disassembling existing supports. Replaces jam nuts in high vibratory applications. Load capacities similar to that of ATR. Available in zinc plated or 316 stainless steel.