Anchor Fasteners are one of the strongest internal fastening methods. Position and reposition extrusion with a Ball-End Hex Wrench. Provides 90 degree, flush, vibration resistant connection, and provides a very clean and esthetic look. Ideal when Joining Plates or Corner Brackets cannot be used. Anchor fasteners require counter bore machining on the t slot profile. Works with a lot of 6mm slot Aluminum extrusions. Assembly includes (2) Zinc Anchor Fastener Cam, (2) Stainless Steel Socket Head Screw, and (1) Double T-Nut.