The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Guns, Politics, Gunsmithing & Reloading Gunsmithing Re: Thread sealantGo | New | Find | Notify | Tools | Reply | |
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Is it necessary, or advisable, to use a thread sealant when mounting a scope? If so, would blue Loctite be acceptable or should I buy the purple Loctite? Also, has anyone used clear nail poish as a thread sealant? My standard procedure when mounting a scope is to lap the rings and torque the screws. I'm just wondering if purple Loctite is really necessary or is this just another marketing ploy. I'll gladly spend the extra money to do the job correctly, I'm just not sure if purple Loctite is needed. Thanks for the comments. Jim NRA member | ||
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I never use either, and there will be a zillion opinions on this, but a lot of the gurus in the military and places like Leupold, say just use a light drop of oil on the threads  , and then tighten appropriately--which is the key IMOIf I was gonna use loctite, I would never use Purple! blue is fine if ya gotta. | |||
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I know oil seems counter intuitive when you want the screws to stay in place, but that is how almost all important high stress fasteners are held in place. The key to insuring that fasteners don't loosen is to tighten them to the point they stretch a little bit(but not too much). Oil on the threads lessens friction and allows you to attain proper torque. When an automotive Engine is a assembled there are specific torque specks for the all the different fasteners. If you use a different lubricant than the one specified you have to used different torque specs. Jason "You're not hard-core, unless you live hard-core." _______________________ Hunting in Africa is an adventure. The number of variables involved preclude the possibility of a perfect hunt. Some problems will arise. How you decide to handle them will determine how much you enjoy your hunt. Just tell yourself, "it's all part of the adventure." Remember, if Robert Ruark had gotten upset every time problems with Harry Selby's flat bed truck delayed the safari, Horn of the Hunter would have read like an indictment of Selby. But Ruark rolled with the punches, poured some gin, and enjoyed the adventure. -Jason Brown | |||
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agreed- IIRC, tork settings are given for lubricated threads in building/construction/rigging also. | |||
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The oil is a good idea! You tighten the screw, then give the handle of the screwdriver a pretty good "whack" Now you can pretty easily take another 1/4- 1/2 turn......these insuctions from Maynard Buehler 50 yrs ago. Do this and the screws will NEVER loosen except on purpose with a good fitting screwdriver blade. Loctite should be outlawed for scope bases! | |||
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Gentlemen, Thank you for the feed back. I am quite familiar with bolt torques and rebuilding small engines. I'll make sure that I keep my Loctite for small engines and use only oil on my scope bases. I feel much relieved knowing the opinions of qualified people. Hopefully some day I'll be able to help someone in need. Thank you. Jim NRA member | |||
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absolutely, positively, no doubt, right on,  | |||
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I agree locktite should not be used on most things. If you are having trouble with screws loosening after the proper torque, I use a little rubber cement. It acts as a little shock absorber and still allows the screw to be removed normally. It has worked for me....Tom SCI lifer NRA Patron DRSS DSC | |||
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Got it for scope bases, does this also apply to the screws on the rings, do you whack them also?  Jim fur, feathers, & meat in the freezer  "Pass it on to your kids" | |||
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btt | |||
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Even the guys who advocate thread locker on the bake screws say not to use it on the ring screws, IIRC. And I would bet Duane does not whack the ring screws. After all, you would have a scope in there! Jason "You're not hard-core, unless you live hard-core." _______________________ Hunting in Africa is an adventure. The number of variables involved preclude the possibility of a perfect hunt. Some problems will arise. How you decide to handle them will determine how much you enjoy your hunt. Just tell yourself, "it's all part of the adventure." Remember, if Robert Ruark had gotten upset every time problems with Harry Selby's flat bed truck delayed the safari, Horn of the Hunter would have read like an indictment of Selby. But Ruark rolled with the punches, poured some gin, and enjoyed the adventure. -Jason Brown | |||
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Thanks Jim fur, feathers, & meat in the freezer "Pass it on to your kids" | |||
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No...I do not "seat" the ring screws./..I agree it would probably not be a good idea...but I don't remember advising anyone to do that anyway. If you alternate torque..just the way you're supposed to mount a wheel to the family sedan. you will soon get a feel of when you've reached "bottom" hard to explain..but when properly done, the ring screws will take substantial torque to loosen...again make sure to alternate a fraction of a turn a time I don't use loc tite there either. Every shop needs to have some around, just not to be used as a cure all. | |||
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Duane, no, you didn't advise seating the scope rings Jim fur, feathers, & meat in the freezer "Pass it on to your kids" | |||
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The nice thing about the Torx system is that those little fasteners can handle about 60% more torque than traditional Allen head, flat srew driver and phillips screwdrive type fasteners. Another reason to thank the Scandinavians!  | |||
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