McMaster 1078N26 Class 10.9 High Strength Steel Threaded Rod, M48 × 5 mm Thread Size, 1 m Long 486 Opening size 3 4 in Non Sparking Opening size 3 4 in Non Sparking No Cutting Direction Right Hand Finish Machining Bright (Uncoated) Measurement System Fractional Inch Material Machining Steel For Tool Type Rotary Hammer Primary Material Application Masonry Cutting Application Driving Ground Rods Chisel Collar Shape Round Shank Type Machining SDS Max Chisel Type Ground Rod Driver Decimal Equivalent 0 1 lb Container Color Red Container Type Canvas Pouch Corrosion Resistant Yes Box End Type 12 Point Box End Anti Slip Design Yes Non Magnetic No Opening Angle (Deg these rods are strong enough to stabilize steel frameworks and structural supports from mounting I beams to suspending light fixtures