Here is the list of top-rated brands that were evaluated by CherryPicks.
Little Awesome M8 x 35mm Thread T Slot Drop-in Bolt.
MroMax M8-1.25x20mm T Slot Bolts Carbon Steel Drop-in Stud Sliding. 20 Pcs M6 x 25mm Thread T Slot Drop-in Bolt. uxcell M6x25mm T-Slot Drop-in Stud Sliding Bolt Screw Carbon Steel. Metric M8 x 16mm Thread T Slot,Drop-in Bolt T-Bolt,Hammer Head. M5 25]-T Bolt Aluminum Connector-T Head Screw-T Bolt-for 2020 Series. MroMax M8-1.25x25mm T Slot Bolts Carbon Steel Drop-in Stud Sliding. POWERTEC QTB1008 T-Slot Bolts 1/4”-20 Thread Size T-Bolt 1.5 Inch. Top 10 T-Slot Bolts - Verified to Buy (Dec. 2023)