Transom bolts

[Chris Iliohan]

Not sure if you have a mercury but part # from them is 10-67755-1

[Bass Cat Boats]

Yeah its an 02 Cougar & 225 Opti. I goofed up and failed to mention that part!! Thanks Hookminthelips. Ronnie

[Bass Cat Boats]

You may be able to get those locally at a Home Depot or Lowes, and they are not a Merc part. Though we would have BCB Parts ship one in with the fine threaded bolts, washers and nuts. BCB

[Bass Cat Boats]

BCB beat me to it, but here in Birmingham we have a big supply company that specializes in stainless stuff. You can get the stainless bolts in fine or coarse threads. Fine is what you want for motor to jack attachment. You also want bronze nylock nuts, and you want to put a touch of anti-seize on the threads first to prevent galling which will make them impossible to tighten or remove. I would carefully measure and buy bolts long enough to reach thru the motor bracket, and the jack plate, and only have a thread or two stick out of the bronze nut, to avoid collecting trash (including human skin if you are not careful when you board from the rear after jumping in for some reason). I have always used fine threads for metal-to-metal mounting, and coarse threads for metal-to-something-else (such as jack to transom) which makes it harder to over-compress the softer material.2008 Pantera Classic2014 Mercury Pro XS 200

[Bass Cat Boats]

OT57, we do not suggest the bronze locking nuts, as we have seen lots of those split. Emphasize, a good many have split, and we prefer stainless all the way, with anti seize. BCB

[RonnieF]

Thanks BCB & OT57. Is there a recommended torque to tighten or just real good n tight? Ronnie

[oldtimer57]

BCB: Good information. Ive never had em split, but then I have never been tempted to over-tighten them either. My son could split a lock nut made out of diamond I think. Keep telling him to go easy and use a torque wrench, but youngsters of today dont have that kind of time to waste. I have used stainless lock nuts, but have found them _much_ harder to find, except at the stainless supply house I mentioned earlier. 1/2″ bolts are not so common at our big box stores around here, and decent locking nuts are rarer yet, usually being the plated variety of non-stainless. The only real problem I have seen is using coarse threads on the engine-to-plate mounting, where they seem to vibrate loose easier than the fine-thread bolts. Im also big on blue lock-tite as well2008 Pantera Classic2014 Mercury Pro XS 200

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