Item:Key Locking Thread Insert; Type:4 Locking Keys; Wall Type:Thick; Material:Black Phosphate Steel; Internal Thread Size:5/8-11; External Thread Size:7/8-14; Thread Type:Unc; Length:0.87 In; Tap Sizes:7/8-14; Drill Size:53/64 In; Min. Full Thread Depth:1 In; Internal Thread Class:3B; External Thread Class:2A; Application:fit Metal; Installation:Tool 5Xa45; Package Quantity:5;5 Pk,0.87 In Black Phosphate Steel Key Locking Thread Insert Compatible 5/8-11 Internal Thread Size,,20400002440-Office Products