02-09-2011, 07:56 PM | #21 | |
Senior Member
Join Date: May 2010
Location: Wa.
Posts: 5,409
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Re: Ny-Lock Nuts
Quote:
When tightened the flat distorts the body like a cone and pulls the serrations in against the thread...When not tight there is no pressure on the threads. This is why you can spin them on and off by hand and can reuse them. Most Marsden nuts are at least grade 8. Fastener quality is not a good place to skimp. Question: Ever wonder why the hot shot engine builders seldom use torque wrenches? Answer: They use the bolt stretch method which uses a dial indicator to measure the stretch of the fastener. A plain high strength nut (no locking device) will never come loose tightened this way. Checked with a torque wrench they will usually be about 10% over the NORMAL torque wrench setting. |
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