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Turnbuckle Jam Nut
5/16" LH

Part #: Z2050
This left hand locking jam nut is used on turnbuckles with a closed body. Not untended for use on open body turnbuckles. If yours is original equipment rigging and there is a stud at the bottom end of your shroud, the left hand thread is used on the bottom screw (the threaded T-bolt) of the turnbuckle.
If your original turnbuckle had a T-bolt and toggle both top and bottom, one thread is left hand and one end is right hand. Since the turnbuckle may have been installed with either end at the top, we have now way of knowing which end of your turnbuckle is left or right hand.

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