Track Splice Threaded Rod. Compatible with 16RT Roller Track. Splice uses 3/16 inch hex key to lock screw and provide seamless channel for trolleys. Designed to suspend and splice two pieces of 16 Roller Track via Threaded Rod, Part A3238-10. Provides 2.5 inch steel plate with one 0.39 inch diameter predrilled hole. Requires Part N3/816CZ Nut.