years ago, except for 380,271, and green sleeve retainer (specialized apps) on various items, speed parts, firearms, knives ect. I went to Vibra-tite, VC-3. i know most of ya have seen it, the red or blue 'paint" that comes on some scope fasteners, some forend rails, think magpul uses blue on their gear, cannot remember. anyway. Instead of being a hardening anarobic sealer that usually leaves a lot of debris, gauled /stripped threads, or goo in the action from to much application, this is a acrylic Polymer that dampens and absorbs shock and vibration.
works on wood,plastic, alloy, steel stainless. you simply clean the screw completely free of debris, and grease (isopropyl alcohol ) paint the thread with a light coat, let it dry, clean the threads its going into, and install and torque. bolt can be removed and reinstalled several times before it has to be re-
read the spec’s here www.vibra-tite.com purchase it here www.jdindustrialsupply.com
item#21330 Vibra-tite VC-3 threadmate with brush top applicator price is $24.99 for a 1 fl oz (30cc) bottle that will last and last. have heard its also available on amazon. but look at the website, and see the specs. I works really really well. Ive not had anything back loose since i started using it on engine applications (high temp High rev) and ive not had the scope mounts or sight screws come loose on the 300 win mag or the 45/70s since i went to using it primarily.