Peg&Stop Heavy Duty is our strongest marine grade recycled stainless steel screw peg with the new lock nut. This screw peg is specifically designed for, and should be used with, an impact screwdriver (A cordless screwdriver has limited power depending on soil conditions). Designed primarily for highly compacted, extremely hard and rocky soils in exceptional conditions. Height adjustable lock nut 2.0 (with hook) means the screw peg does not always have to be screwed all the way in. This Peggy can by one to two clockwise turns with the lock nut not only our anchor plates super with counter-pressure fasten, but also tents and storm lines securely. Screw in the P&S HD until it has no more propulsion and is firmly anchored in the ground. Then turn the nut to the lowest possible point and hook in the line or tensioning element - done.