EnjoyTool
Hex Drive Threaded Insert, 5/16"-18 Int Thrd Sz, 33/64 in L, 9/16 in Dia., Zinc Alloy, Plain, 50 PK, EnjoyTool Select, Mfr#: 951618-13-PK50 | EnjoyTool | EnjoyTool - Quality Tools & Building Materials