no pre-drilling is required - the anchor is inserted through the fixture and screwed in with an ordinary Phillips screwdriver

1 1/4-7 x 6 Grade 8 Hex Cap Screw Plain Domestic USA (5)

With 102 robust screws in every 1-pound box

9/16-18 x 6 Grade 5 Hex Cap Screw Plain Domestic USA (75)

made in the USA with hot dipped galvanized finish for corrosion protection

2" X 2" HSS Annular Cutter, Qualtech, Premium, DWC5-530-281 LedgerLOK Ledger Board Fasteners no pre-drilling is required -Annular cutters are designed for fast, efficient hole making. Annular cutters cut only that material necessary to produce a quality hole. Works with Hougen Magnetic Drill, Milwaukee and similar machines.