t6slotEngineering Hardware Standards. Dimension Table for T-Slots, Bolts, and Nuts per. American National Standard T-Slots ANSIASME B5.1M-1985. 1. Width of tongue used with the T-SlotsTSLOTS dital catalog has been created to make finding the rht t-slotted product as easy as possible. Our catalog includes over 120 extrusion profiles over both our fractional and metric