Trailer Stabilizing Jacks are used to prevent up-ending of semi-trailers when they are not connected to a tractor during loading and unloading operations. Also used to level trailers parked on sloped ground and to prevent landing gear from sinking into a soft surface. High strength steel construction. Flush-type zerk fitting for lubricating ACME screw. Meets OSHA regulations when used with wheel chocks. Yellow powder coat finish for added toughness. Includes reflective collar for visibility at night.

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