Weight:12 lbs/4x4 and 21 lbs/6x6 -4"x4"x5" square tubing
1-1/2" x 6-1/2" pipe
1-1/4 acme threads
14.25 overall length screwed down .
Full 6" adjustment
Inner pipe is packed with grease to prevent rusting.
Allowable loads for 4x4 screw jack is 15000 lbs and 30,000 lbs for a fully extended 6x6 screw jack
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