Product features • Load capacity: 960kg • Measure: 1/4 "x 2 1/4" • Material: Carbon steel • Finish: Galvanized • Hexagonal head. • Rapid turns thanks to its special threads • Can be installed with short distances between them and near the edge • They are easily removable • Do not destroy the concrete ** To achieve load capacity, the force of the concrete must be greater than 4,000 psi, with 2 times the minimum distance between screws. **