Specification:nbsp; Material: Aluminum Thread: M6nbsp; Quantity: 5pcs Size:nbsp; Features: Undersized to fit hardened machine table slot box.nbsp; It is used for T-slot aluminum extrusions to connect other parts and connected together with T screws or others. T-slot nuts allow the user to add clamps to a device without knocking down existing clamps.nbsp; nbsp;Package Included:nbsp; 5pcs x Tnbsp; Slotted Nut Note:nbsp; 1. Please allow a little error due to manual measurement. please make sure you do not mind before you bid.nbsp; 2. The color may be different as the difference display, please understand. nbsp;