3/8-16 Zinc Round Base T-nuts
1-1/2" Structural Wood Screws (Indoor/Outdoor)
2-1/2" Structural Wood Screw (Indoor/Outdoor)
2" Structural Wood Screw (Indoor/Outdoor)
#4 is the most difficult to hang on to out of these four slopers. It has a barely noticeable indent at the back. Contact strength and sloper technique are what this hold requires. Sloper skills or head for the hills. On a vertical hang board = Feels like V2. On a 110 degree system wall = Feels like V4. Sold as a set of 2 holds.