1/4" steel plate with rim to aid in centering the post, prevent the post from slipping off the jack, and to minimize any post base damage via load distribution. 3-5/8” square opening to fit the typical 4"x4" (nominal) post.
Max 2" opening to accommodate most jack saddles. 4/EA screws included and used for positioning the post directly over the jack. Screws are not intended to tightly secure the adaptor to the saddle as smaller saddles (even some 4t) may not contact the entire screw face. Cutting/adding steel shims (not included) between saddle and baseplate will remedy said issue on thinner saddles. Screw thread distance to baseplate is 5/16".
Fully welded construction and powder coat finish.
NOTE: Some older, swollen, or various other 4x4 lumber may be larger than 3-1/2”. It's likely that 99% of the posts from a home improvement and lumber yards will fit. If yours does not fit, you have a choice of carefully chiseling/trimming the bottom 3/4” of the post or finding a normal post to use.
DISCLAIMER: From the heavy steel construction, the centering ability, and the tight post clearance, heavy emphasis went into this design to ensure you have a safer jacking experience. Ultimately, jack safety is YOUR responsibility. Please research jack safety if you need additional guidance. Jacking is dangerous. You can get hurt or die by not using proper safety, overloading, working on slopes, using defective equipment, etc. This device may or may not make jacking safer.
Adaptor and screws only. Bottle jack nor the post is included.
وصف
Using the patent pending JACK STACK assists in centering the typical 4x4 jacking post over the bottle jack. Lifting with an off-centered jack/post assembly will easily tip as load increases. JACK STACK is added protection against your jack tipping as well as distributing the load over the bottom of the post. It accommodates up to a 2” jack saddle (head) and 3-5/8” jacking post. Most 4"x4" posts are 3-1/2", but please ensure your jack and your favorite jacking post fit before ordering.
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