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According to the data in this thread, the stock pin is 2024T361 aluminum and is stronger than a pin made out of 6061T6 aluminum.

What kind of bolt is that? It's definitely not a stock shear pin. Due the the extensive testing gringeltaube has done in the past, a actually use a brass bolt in mine. According to G's testing, the brass bolt offers a touch more strength over the stock pin but not enough to tear anything up.

I had a mil spec pin tested and it is in fact 2024. The test I had performed didn't tell the temper but T361 seems resonable. Now it could be that the spec changed at some point but the pin I had tested was 2024. If you read the whole thread you'll see were I had the pin tested.

I've had Gerhard's chart since he posted it. After him going through the testing and reading his results, I'm running a brass bolt in my winch. I have several 5/16 brass bolts so I turn them down a bit on the lathe and use them. No broken shear pins or winch yet.

2024 AL Too hard. Both of these questions have been answered earlier in the thread.

I'm familiar with shear pins used in a New Holland baler. They would be too hard. Anybody considering using anything but the stock pins needs to take a look at the chart gringeltaube took the time to research. All of the steel pins he tested were above the safe limit. PLEASE READ THR CHART...

With that chart and knowing accual torque values you can figure accual line pull. I don't have time at the moment but I'll set down this afternoon and figure it and post up.

Looks like the thing to do is go with 5/16" brass if I read your chart correctly.

I've got a winch but haven't installed it yet so I don't have any first hand knowledge of deuce winches or shear pins. Seems like the more we talk about shear pins and answer questions the more questions it brings up. Why are there reports of the pin breaking under no or very little load? Is...

Gerhard, Thanks for your testing on this subject. Get some AL pins from Kenny (I'd send you some myself but I don't have any) and test them if you don't mind :wink:.

I wish everybody recomending using steel bolts or pins (of any grade) would take a look at these threads. http://www.steelsoldiers.com/deuce/17076-shear-pins-do-work.html?highlight=bolt+shear+pin http://www.steelsoldiers.com/deuce/26126-winch-fragged.html?highlight=bolt+shear+pin I have...

PTO winches are rated pretty close to accual line pull. Most electric winches use some sort of formula to rate their winches that takes into account for rolling loads ( which is wrong IMO). Bottom line is you can take a 12,000lb electric winch and a 8,000lb PTO winch will outpull it.

All the farm equipment shear pins I've ever seen were steel. I would think you could be in trouble using a steel shear pin. The factory pins are 9/32" in dia. also. I think you may be ok using a 5/16 aluminum pin but not a steel one.

I wonder if you can get 9/32 rod. Kind of a odd size. If not you could turn down some bigger rod but it would be alot easier if you could find the correct size and people could make them that didn't own a lathe. If I think about it I'll talk to my supplier and find out.

The pin I tested (which is a surplus pin) was 2024. The temper is what's in question now.

I feel sure if I can find the temper I can cut them out of solid rod and drill two holes in it for less than a $1 a piece.

Better yet is you could find a rod close the the dia. of the winch input, slip a piece of pipe over the rod, drill through both for the pin, weld nut to pin, and put rod in vice. You could then use a torque wrench on the welded nut. Only problem with my idea or yours is a "click" torque...

The test that was performed just told the alloy. The local scrap yard has a gun that you put it aginst the metal and pull the trigger and it tells the alloy on the screen. It has no way to tell heat treatment. I had to hammer the pin flat to get a reading on the machine and I can tell you it...

I got the pin tested today. The alloy is 2024 and 9/32" in dia. for anyone that wants to make them. I'm thinking of maybe making them and offering them for sale myself if I can compete with the cost of surplus pins.

I got a pin today ( thanks rockman). I should be able to find the alloy if I can hammer it out enough to get enough surface area to get a good test.