Woodpeckers Precision Woodworking Tools MSN-4PC Miter Slot Nuts, 4-Pack Standard T-track nuts won't fit in table saw slots, our Miter Slot Nuts will Turned from steel, zinc plated and sized to fit most standard 3/4-inch x 3/8-inch miter channels in both table saws and router tables The center is drilled and tapped with 1/4 -20 threads and counter bored to fit the head of standard hex bolts It has room for standard diameter sockets as well Includes four complete sets of Miter Slot Nuts and hardware