Helicoil screw anchor.
This is ideal for fixing marquees onto soft ground, or in wet conditions. The helicoil is screwed into the ground, a steel bar 12" - 24" can often help. The eye on top is used for fixing to guy ropes, ratchet straps or wires.
This helicoil is also often used for fixing large advertising signs and trailers in exposed situations.
Helicoil normally will take a load in excess of 3/4 ton before it is lifted from the ground.
Size 600mm long x 100mm Diameter