Features Adjustable jack post. 15 gauge. Size – 1-1 ft. 4 in. Max ext load 18,000 lbs. Min ext load 18,000 lbs. Additional support for crawl spaces attic. Staircase or decks. Adjusts with 3/4 in. Wrench. O.d. Gauge & tube dim 2-1/4 x 10 in. Screw size 1 x 7 in. 5 thread support. Collar size 2-1/4 x 1/2 in. Support pins 1/2 x 3 in. 13 gauge plate size 4 x 5 in. Corrosion resistant inside & out. Double carriage bolt & nut (zinc coated) for added safety. Heavy plates suited for wood & steel. Deep dish self-centering plates. Dimension – 5 x 14 x 3 in. Item weight – 6 lbs.
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