Antrader 1/4"-20 Threaded Centered Slide in Economy T Nuts with 1/4"-20 x 0.63 Bolt for T Slot Track 10 Series or 1.0" Base Aluminum Extrusion,Black (20 Set)

["Package Contains: 20pcs x 1/4\"-20 T-Nuts and 20pcs x 1/4\"-20 x 0.63\" bolt.","Specifications: The center slide T-nut designed for 1/4\"-20 T-slots.","Material: These T track nuts are made of carbon steel,with good resistance to corrosion,rust,and wear.","Versatile Use: T nut accessory hardwares are suitable for aluminum frame structures,CNC laser cutters,3D printers,CNC router machines,ect.","Easy to Install: Can be easily inserted into the T-slot track from one end of the aluminum profile,saving your time and effort."]