Stainless steel Standard Drop In T-Slot nut 

About this item  HIGH QUALITY: The fasteners nuts are made from high quality stainless steel, which have high hardness and a long service life.     EASY TO USE: These T-slot nuts are simple to use and convenient to connect aluminum profiles to other parts.  PRACTICAL: EU20 is used on profiles aluminum with 6mm slot, while EU30 is used on profiles with 8mm slot, can bring you more convenience.  EUROPEAN STANDARD: These hammer head nut has a wide range use, mainly used for European standard aluminum extrusion profiles.  PACKAGE INCLUDES: There are total 50pcs t-nut that you can use for many projects, very practical, can meet your use.