McMaster 91290A876 Black Oxide Alloy Steel Socket Head Screw, M24 × 3 mm Thread, 110 mm Long, Class 12.9 95101100 offering high quality components that meet offering high quality components that meet rigorous industry standards Bit Material High Speed Steel Drill Bit Type Ground Rod Driver Bit Drill Bit Type(s) Included Ground Rod Driver Bit Features No Additional Features Impact Driver Capability Standard Individual Set Individual Material Application Concrete Number of Pieces 1 Piece Number of Pieces 1 Pack Size 1 Returnable 90 Day Shank Style SDS Max Tools Product Type Other 9 Drive Size 19 mm Hardness Rockwell C41 Material Black Oxide Alloy Steel Minimum Thread Length 60 mm High strength Class 12