Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Light rifles, big cartridges, and scope mounts - learned my lesson, now it's time to pass it on.
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="WiscGunner" data-source="post: 2213818" data-attributes="member: 97288"><p>One thing to keep in mind is the use of Loctite and its purpose. Loctite is simple a glue to fill the space in the threads to great more surface area to reduce movement caused by vibration. Loctite becomes less useful in high torque locations than in low torque situations. Small screws with light torque benefit greatly from Loctite while "larger" screws with higher torque benefit less.</p><p></p><p>The mist important thing to remember about Loctite is it a LIQUID. This means normal metal/metal torque limits are not the same as hydrolic torque limits. A torque wrench gives a reading not knowing what materials are being measured.</p><p>Metal on metal torque provides resistance to loosening through the spring tension of deforming the metal if the threads, body and head of the screw. </p><p></p><p>Liquid "torque" readings are simply pressure levels of the hydrolic fluid. This, by its very nature, gives false readings of functional torque as you are really (mainly, mostly or completely depending on the exact application) reading the pressure PUSHING on the liquid and nor PULLING on the threads. This will, to varying degrees, apply all or some of the "torque" in the wrong direction. An incorrect but easy way to thing of it is the loctite being a shim under the tip of the screw causing the screw to bottom out with out tightening at the head. This can "feel" tight in the hand but parts being connected can still be separated by feet.</p><p></p><p>If you choose to use Loctite, it cannot be stressed enough that less is more.</p><p></p><p>Long story short, 20in/lb of "torque" on screws with loctite was not in fact 20in/lbs of clamping force on the scope.</p></blockquote><p></p>
[QUOTE="WiscGunner, post: 2213818, member: 97288"] One thing to keep in mind is the use of Loctite and its purpose. Loctite is simple a glue to fill the space in the threads to great more surface area to reduce movement caused by vibration. Loctite becomes less useful in high torque locations than in low torque situations. Small screws with light torque benefit greatly from Loctite while “larger” screws with higher torque benefit less. The mist important thing to remember about Loctite is it a LIQUID. This means normal metal/metal torque limits are not the same as hydrolic torque limits. A torque wrench gives a reading not knowing what materials are being measured. Metal on metal torque provides resistance to loosening through the spring tension of deforming the metal if the threads, body and head of the screw. Liquid “torque” readings are simply pressure levels of the hydrolic fluid. This, by its very nature, gives false readings of functional torque as you are really (mainly, mostly or completely depending on the exact application) reading the pressure PUSHING on the liquid and nor PULLING on the threads. This will, to varying degrees, apply all or some of the “torque” in the wrong direction. An incorrect but easy way to thing of it is the loctite being a shim under the tip of the screw causing the screw to bottom out with out tightening at the head. This can “feel” tight in the hand but parts being connected can still be separated by feet. If you choose to use Loctite, it cannot be stressed enough that less is more. Long story short, 20in/lb of “torque” on screws with loctite was not in fact 20in/lbs of clamping force on the scope. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Light rifles, big cartridges, and scope mounts - learned my lesson, now it's time to pass it on.
Top