Well, if you are worried about strengh, most All thread is Grade 2 which has a yield strength of around 55-57,000 psi. One 1/2 inch bolt has an cross section area of 0.7854 sq inches. One piece of 1/2 inch all thread should hold 43,197 lbs before failure. If you use mild steel all thread, that yield is 33,000 psi. One piece would hold 25,918 lbs before failure. Deere weights usually use 3 bolts so they would hold 38.9 tons.......using mild steel all thread. Using a 4-1 safety factor... they would hold 9 tons of weights. Your 200 lbs? A piece of cake.....
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Today's Featured Article - History of the Nuffield Tractor - by Anthony West. The Nuffield tractor story started in early 1945. The British government still reeling from the effects of the war on the economy, approached the Nuffield organization to see if they would design and build an "ALL NEW" British built wheeled tractor, suitable for both British and world farming.
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