What is the name for a bolt hole with a slot that allows the bolt to be

slot bolt   Dan slot screen

slot extrusions for fastening brackets and items to your rails Available in M5 or M4 thread size

No e, k, b, a1, Bolt Size , T-Slot Size , L, Part  T-Slot Nuts with threads and Groove Profiles that can be machined as required are installed in a groove to provide a counterpart for screws

gold pile toltec treasure slot T-BOLT for 14 mm T-SLOT · Length 100 mm ₹₹ ₹1,₹1, In stock · Length 125 mm ₹₹ ₹1,₹1, In Comments7 · Vise Hardware: T-Slot bolts · HAMMER TIME: Easy Tool Tips for Keeping Your