For fastening into wallboard or wood, no pre-drilling is required. Fastening into concrete, hollow or grout filled block, brick and plaster requires a pre-drilled 3/16" ANSI hole.
                    Unit of Measure
                    
               
        
            | Units Per Package | N/A 100 | 
| Details | N/A 1-1/2" Black Phosphate Pan Head | 
