adamsmitqc
Member
- Messages
- 252
nothing worse than when stainless 'picks up', Swagelok super goop is the best thread lubricant i've ever used on stainless.
Also. certain fittings which are designed to lock the threads, i.e aero nuts, can prove tight not just to initially break but all the way down the length of the thread.
in my humble opinion, heat is the answer when it comes to undoing stubborn nuts and bolts, nut splitters work, however i only really rate the hydraulic type, the grease filled ones tend to be to awkward and cumbersome. Also like previously mentioned you can cut off a nut without damaging it with a hacksaw, angle grinder or for more awkward to reach a good strong cold chisel. Lets not forget the humble scaff tube (or torque multiplier if the boss ask how i undone it).
Another point to note, on heavily corroded items, if heat isn't available, shocking the threads can work wonders, again i prefer a decent sized sharp cold chisel with a nice, heavy short handled club hammer, give the nut a good few cracks then try releasing it again.
Also. certain fittings which are designed to lock the threads, i.e aero nuts, can prove tight not just to initially break but all the way down the length of the thread.
in my humble opinion, heat is the answer when it comes to undoing stubborn nuts and bolts, nut splitters work, however i only really rate the hydraulic type, the grease filled ones tend to be to awkward and cumbersome. Also like previously mentioned you can cut off a nut without damaging it with a hacksaw, angle grinder or for more awkward to reach a good strong cold chisel. Lets not forget the humble scaff tube (or torque multiplier if the boss ask how i undone it).
Another point to note, on heavily corroded items, if heat isn't available, shocking the threads can work wonders, again i prefer a decent sized sharp cold chisel with a nice, heavy short handled club hammer, give the nut a good few cracks then try releasing it again.
