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In Reply to: i would check with the speaker's... posted by Bobby Palkovic on March 23, 2007 at 05:43:23:
A pair of speakers -- which I found on the used market-- has at least half of its threads stripped. Still not sure what to do about it.So the idea of knowing the torque, if one is specified by the manufacturer, sounds like a good one.
Follow Ups:
some speakers can respond in incredible ways when the correct torque setting is used. torque setting in inch pounds is very sensitive work and almost impossible to set by hand/touch. with foot pounds certainly there is more touch potential there but torque setting the fasteners will control resonances or tune them and alter the q of the enclosure to a degree. this is touchy work in a sophisticated speaker that is highly tuned.
if you have stipped threads in a wooden enclosure get some appropriately sized dowls from a hardware and tap them in after applying wood glue. drill a pilot after cured and you are all set. try a little hand soap on the screw tip so they do not bind up and the torque can be set easier. good luck with your repair.
bobby
I'll give it a try!
A man with decent mechanical aptitude can torque a screw pretty close by feel; usually when I given size screw feels right it's torqued right. Especially when talking silly little machines like speakers. Of course there's always some klutz that overtightens and breaks screws or crossthreads them but then that's how we define a klutz isn't it?Torquing screws on steam generator manways in nuclear plants to 2400 pounds or bolting heads on heat exchangers in chemical plants and powerhouses are different stories of course. Though it's surprising how many times you'd whale on a slugging wrench with 12 pound beater till it pinged just right and when you put the torque wrench with 6' extension on it you were on the money.
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