@@HacksbyDad I suppose the cnc milling was on point. A few more theories. 1. the space between the threads have only so small of a space where the air gap inside it (if any) is so small capillary action is impossible. 2. The exposed part of the screw and nut rusted before the insides, hence the rust sealed the insides before anything else. 3. Could be the material/plate the screws were mounted to, and free flowing ions caused the rain/weather to be repelled off of it (this I am not too sure, but it could be affected by the base)
I believe the challenge is usually the heat-cool cycles expand the gaps and let the elements enter the thread surfaces, like the exhaust systems or spark plugs. Otherwise they are probably fine.
Thanks for the tip. 👍 Do you have any idea why the engaged threads of the control samples didn’t rust? The samples were exposed to rain on and off for a year. 😎
@@HacksbyDad if I had to guess, maybe it would take longer for the vertical bolts to be affected by the water. But we'll find out in about a year, unless you do a quick experiment using a water, salt, and peroxide spritzing to oxidize a set of bolts vertically and horizontally.
1 year isnt long enough. usually you are looking at something that has been rusted together for a long while before you try to take apart. Try 5 years with your test.
Check out all of my Nuts and Bolts videos in this playlist... th-cam.com/play/PL_WcGw5s6Cq6YK_s-NNne1838j25ijmii.html
👍😎
I love these videos.
Thanks! Any thoughts on why the engaged threads of the control samples didn’t rust with the samples exposed to the weather for a year? 😎
@@HacksbyDad I suppose the cnc milling was on point.
A few more theories.
1. the space between the threads have only so small of a space where the air gap inside it (if any) is so small capillary action is impossible.
2. The exposed part of the screw and nut rusted before the insides, hence the rust sealed the insides before anything else.
3. Could be the material/plate the screws were mounted to, and free flowing ions caused the rain/weather to be repelled off of it (this I am not too sure, but it could be affected by the base)
@@unknowncrash1 Thanks for theories! We'll see what others say and check the second set of samples in a year. 👍😎
I believe the challenge is usually the heat-cool cycles expand the gaps and let the elements enter the thread surfaces, like the exhaust systems or spark plugs. Otherwise they are probably fine.
Thanks!
Another channel I follow suggests plain ol #2 grease. He used to be a mechanic at a Ford dealership in Minnesota until the dealership shut down.
Thanks for the tip. 👍
Do you have any idea why the engaged threads of the control samples didn’t rust? The samples were exposed to rain on and off for a year. 😎
@@HacksbyDad if I had to guess, maybe it would take longer for the vertical bolts to be affected by the water. But we'll find out in about a year, unless you do a quick experiment using a water, salt, and peroxide spritzing to oxidize a set of bolts vertically and horizontally.
Thanks! I’m a patient guy… hope to hear back from you in a year. 😎
Use hydrogen peroxide and vinegar solution spray them regularly to make them rust a lot quicker.
1 year isnt long enough. usually you are looking at something that has been rusted together for a long while before you try to take apart. Try 5 years with your test.
5 years?! 😳