Hard Metal Closed Hook Fasteners, Pack of 2 Pieces, Metal (2 Piece) - Product Features
- Need to use 16mm diameter drill bit for drilling holes, the drilling depth should great than or equal to 7 cm
- Screw diameter: approx 16mm / 0.6 inch
- Package includes: set of 2 anchor bolts
- easy to use for hanging swings, wires for outdoor and indoor