Quote:
Originally Posted by Tools
No, Loctite is a one-time use thread locker.
Use heat to initially break the Loctite seal, then clean up with acetone.
Whether you use Loctite on the threads yourself is a personal decision. It is used because the bracelet pins are actually studs, not bolts and there is no sealing surface to torque against; they just screw in the holes where their only grasp is the threads. The bracelet, then, is free to move on these studs.
The issue is that with the bracelet links moving, friction in an anti-clockwise direction can loosen the studs from the threads. Keeping an eye out and retightening the studs can eliminate any potential loss of a screw,
The factory uses a thread locker for just that reason..... there is nothing to torque the screws against. Locker can be used with a minimal amount of tightening.
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Excellent explanation Larry. Agree with the point about mechanical torque.
I lost count many years ago of the number of times members created a thread about stripping a link screw head, or an AD SA or even scratching the link edges while applying pressure. But let's walk down memory lane...
These stud slots aren't designed to be torqued much past 1 Nm - 2 Nm without the risk of slippage. Thus, the value of thread locker.
It's a flawed assumption that tighter torque "locks" the stud threads. There isn't sufficient differential Rockwell hardness between the female and male threads to allow mechanical grip like we have in tradition graded fasteners.
It's the simple act of seating the threads and letting the thread locker dry sufficiently.
For those who wonder how the simple rotation of bracelet links can unseat a stud that doesn't have thread locker, just consider the amount of gunk and grit that can get between the slotted head and the link hole that is designed to prevent binding. (The hole is larger in diameter than the stud head)
Don't believe it?
For anyone who ran a finger along the edge of their bracelet and found a stud standing proud, how did you think that happened?
Did the bracelet gremlin do it?
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