Grip bushing torque ?

[snuffy33]

Is there a torque spec. for tightening grip bushings in steel frames ?

[Hawkmoon]

0, plus or minus 1 inch-pound.


Seriously, not much. Those are VERY fine threads, it doesn't take much to strip them, and once you strip them there is only ONE oversize available. Basically, put a small drop of blue Loctite on the threads and turn them down until the shoulder makes contact, then add just a tiny bit of additional torque.

[snuffy33]

Thanks. That was about what I figured but thought I'd ask.

[lksstbls]

Kuhnhausen's Volume 1 on smithing the 1911 suggests that a drop of Red Loctite be applied to the threads before inserting the bushing and then "snugging up" the bushing in the frame. Guess the color of the Loctite is the only issue.

[toolman]

Red Loctite means the grip screw bushing will need to be heated up to over 400 degrees F. if you ever need to remove the grip screw bushing. Just so you'll know.

[niemi24s]

Seriously, not much. Those are VERY fine threads, it doesn't take much to strip them . . .VERY fine indeed. IIRC, the thread depth for their pitch is only about 0.010", so you definitely can't use Bubba's head bolt torquing method: "Tighten 'em till they squeak then give 'em another half a turn". :p

Cheers

[Hawkmoon]

Many people suggest/recommend red Loctite. Loctite's infrmation lists red for "large" fasteners that will not be removed. Removal requires heat.

My experience with years of playing on Jeeps and other automotive applications has led me to not even allow red Loctite on the premises. For a thread as small and fine as the grip bushings, if blue won't hold it when properly applied -- you have other problems that no Loctite can solve.

[gfavaron]

Listen to Hawkmoon. Yea verily he speaketh a mighty truth. Much of the troubles in this world are caused by red LocTite and Dremmel tools. There are several useful places for red LocTite on a 1911, and none of them involve screws or screw threads.

[JCH]

[QUOTE=lksstbls]Kuhnhausen's Volume 1 on smithing the 1911 suggests that a drop of Red Loctite be applied to the threads before inserting the bushing and then "snugging up" the bushing in the frame. Guess the color of the Loctite is the only issue.[/QUOTE

YMMV...I guess I am in good company being wrong....red loctite works, however.

[log man]

It is a question of application as to whether 266, 271,272,2760,277 all red Loctites, with 271 probably the most popular high strength of them, is okay to use without the risk of damage. In the grip bushing I'm sure 242 (blue) is fine, but with the shallow depth the 271 will not pose a problem and would certainly be my choice, especially if the threads where in question at all. If I suspect a Loctite product may have been used on any thing except tritium sights I always apply a little heat with a small propane torch. It saves the part. If you plan on using any product like Loctite I always experiment a little with a spare bolt or part to get a feel of it.

LOG

[Dreadnought]

It is a question of application as to whether 266, 271,272,2760,277 all red Loctites, with 271 probably the most popular high strength of them, is okay to use without the risk of damage. In the grip bushing I'm sure 241 (blue) is fine, but with the shallow depth the 271 will not pose a problem and would certainly be my choice, especially if the threads where in question at all. If I suspect a Loctite product may have been used on any thing except tritium sights I always apply a little heat with a small propane torch. It saves the part. If you plan on using any product like Loctite I always experiment a little with a spare bolt or part to get a feel of it.

LOGIs 241 the grease-resistant kind? I've use 248 (I think it's 248) and some grease was still in the threads of my Rem 700's tapped scope monunt holes which led to my groups opening up for no apparent reason other than I changed bullet weights.

[Hawkmoon]

The Loctite web site lists only three products as "Thread Lockers." Those are Green (#290), Red (#271), and Blue (#242). The Loctite descriptions read as follow:

Green #290
-----------

Prevents vibration loosening of pre-assembled fasteners
For use on electrical connectors, instrumentation, screws, and set screws
Ideal for fasteners #2 - 1/2"


Red #271
---------

OEM specified as 271
High temperature, high strength for heavy duty applications
Designed for larger fasteners 3/8" to 1" (9.5mm to 25mm)
Locks studs, bushings and large fasteners against vibration loosening
Strengthens slip and light press fits
Removable with heat and hand tools


Blue #242
---------

Locks threaded fasteners against vibration loosening
Ideal for nut and bolt applications 1/4" to 3/4" (6mm to 20mm)
Prevents threads from rusting and leaking
Removable with hand tools for easy disassembly
Temperature range: -65 degrees to 300 degrees Fahrenheit (-54 degrees to 149 degrees Celsius)


I used their site's search function to search for the other numbers cited above. Numbers 266, 272, 2760 and 241 all yielded "No Results Found." Number 277 took me to product 80277 --> Naval Jelly rust remover/neutralizer.

[Dave Berryhill]

I use red loctite (271) on grip bushings because I want them to be semi-permanent and not come out easily. Having the bushing come out with the grip screw is a pain. When it's time to remove the bushing, it only takes a big soldering iron or a propane torch to heat the bushing up enough to remove it.

Compared to staking the bushings, I think that red loctite is just as secure and makes the bushings much easier to remove when necessary IMO.

[log man]

Loctite's website is not friendly as it divides the information between consumers and industrial. Loctite #290 is a wicking grade and the strength is in between red and blue. A great choice for sights as it is added after adjustment is made. Sorry about the 241 that's a nearby toll road, LOL, 242 is the right # Here's a partial list of threadlockers.

Loctite® 2033™ Threadlocker Gel

Medium strength threadlocker gel, no run formula
Loctite® 2046™ Threadlocker

The only threadlocker compliant with FDA food additive regulations developed specifically for the Food and Beverage industries.
Loctite® 220™ Threadlocker

Medium strength, wicking grade threadlocker for small screws.
Loctite® 222MS™ Threadlocker

Low strength threadlocker for small screws & military applications.
Loctite® 222™ Threadlocker

Low strength threadlocker for small screw.
Loctite® 242® Threadlocker

Medium strength, general purpose threadlocker.
Loctite® 2432™ Threadlocker

Medium strength threadlocker for active & inactive metals.
Loctite® 243™ Threadlocker

General purpose, medium strength, oil resistant threadlocker.
Loctite® 246™ Threadlocker

Medium strengh threadlocker for heavy duty applications.
Loctite® 262™ Threadlocker

Medium - high strength threadlocker.
Loctite® 266™ Threadlocker

High strength, surface insensitive, high temperature threadlocker.
Loctite® 271™ Threadlocker

High strength, low viscosity threadlocker.
Loctite® 272™ Threadlocker

High strength, fast curing, high temperature threadlocker.
Loctite® 2760™ Threadlocker

High strength, surface insensitive threadlocker.
Loctite® 277™ Threadlocker

High strength threadlocker.
Loctite® 290™ Threadlocker

Medium - high strength threadlocker for pre-assembled parts.
Loctite® 294™ Threadlocker

Medium - high strength, high temperature, wicking grade threadlocker for pre-assembled parts.
Loctite® 425™ Assure™ Instant Adhesive, Surface Curing Threadlocker

Low viscosity, threadlocking, one part, room temperature cure, instant adhesive.



Loctite® 7088™ QuickStix™ Primer

Semi-solid anaerobic primer stick, solvent free.
Loctite® 7649™ Primer N™

Primer for Loctite anaerobics
Loctite® Blue Threadlocker Stick - Medium Strength (Automotive Aftermarket Only)

Medium strength threadlocker semi-solid stick
Loctite® QuickStix™ 248™ Threadlocker Stick, Medium Strength/Removable

Medium strength, threadlocker semi-solid stick
Loctite® QuickStix™ 268™ Threadlocker Stick, High Strength

High strength threadlocker, semi-solid stick
Loctite® Threadlocker 222™ (Automotive Aftermarket Only)

Low strength, removable threadlocker for small fasteners.
Loctite® Threadlocker 242® (Automotive Aftermarket Only)

Medium strength threadlocker
Loctite® Threadlocker 262™ (Automotive Aftermarket Only)

Medium - high strength threadlocker for large bolts & studs.
Loctite® Threadlocker 277™ (Automotive Aftermarket Only)

High strength threadlocker for large bolts and studs.
Loctite® Threadlocker 290™ (Automotive Aftermarket Only)

Medium to high-strength, wicking grade threadlocker.

LOG

[Dreadnought]

Loctite's website is not friendly as it divides the information between consumers and industrial. Loctite #290 is a wicking grade and the strength is in between red and blue. A great choice for sights as it is added after adjustment is made. Sorry about the 241 that's a nearby toll road, LOL, 242 is the right # Here's a partial list of threadlockers.

Loctite® 2033™ Threadlocker Gel

Medium strength threadlocker gel, no run formula
Loctite® 2046™ Threadlocker

The only threadlocker compliant with FDA food additive regulations developed specifically for the Food and Beverage industries.
Loctite® 220™ Threadlocker

Medium strength, wicking grade threadlocker for small screws.
Loctite® 222MS™ Threadlocker

Low strength threadlocker for small screws & military applications.
Loctite® 222™ Threadlocker

Low strength threadlocker for small screw.
Loctite® 242® Threadlocker

Medium strength, general purpose threadlocker.
Loctite® 2432™ Threadlocker

Medium strength threadlocker for active & inactive metals.
Loctite® 243™ Threadlocker

General purpose, medium strength, oil resistant threadlocker.
Loctite® 246™ Threadlocker

Medium strengh threadlocker for heavy duty applications.
Loctite® 262™ Threadlocker

Medium - high strength threadlocker.
Loctite® 266™ Threadlocker

High strength, surface insensitive, high temperature threadlocker.
Loctite® 271™ Threadlocker

High strength, low viscosity threadlocker.
Loctite® 272™ Threadlocker

High strength, fast curing, high temperature threadlocker.
Loctite® 2760™ Threadlocker

High strength, surface insensitive threadlocker.
Loctite® 277™ Threadlocker

High strength threadlocker.
Loctite® 290™ Threadlocker

Medium - high strength threadlocker for pre-assembled parts.
Loctite® 294™ Threadlocker

Medium - high strength, high temperature, wicking grade threadlocker for pre-assembled parts.
Loctite® 425™ Assure™ Instant Adhesive, Surface Curing Threadlocker

Low viscosity, threadlocking, one part, room temperature cure, instant adhesive.



Loctite® 7088™ QuickStix™ Primer

Semi-solid anaerobic primer stick, solvent free.
Loctite® 7649™ Primer N™

Primer for Loctite anaerobics
Loctite® Blue Threadlocker Stick - Medium Strength (Automotive Aftermarket Only)

Medium strength threadlocker semi-solid stick
Loctite® QuickStix™ 248™ Threadlocker Stick, Medium Strength/Removable

Medium strength, threadlocker semi-solid stick
Loctite® QuickStix™ 268™ Threadlocker Stick, High Strength

High strength threadlocker, semi-solid stick
Loctite® Threadlocker 222™ (Automotive Aftermarket Only)

Low strength, removable threadlocker for small fasteners.
Loctite® Threadlocker 242® (Automotive Aftermarket Only)

Medium strength threadlocker
Loctite® Threadlocker 262™ (Automotive Aftermarket Only)

Medium - high strength threadlocker for large bolts & studs.
Loctite® Threadlocker 277™ (Automotive Aftermarket Only)

High strength threadlocker for large bolts and studs.
Loctite® Threadlocker 290™ (Automotive Aftermarket Only)

Medium to high-strength, wicking grade threadlocker.

LOG
Log man, you've got the best data. Where might you have found that listing? I've tried searching Loctite's website numerous times to no avail to find out the oil-resistant threadlocker. 246 it is.
I have a stick of 248 in my hand, it works pretty well for sight set screws, also.

[log man]

http://www.henkelna.com/cps/rde/xchg/henkel_us/hs.xsl/1556_USE_HTML.htm?redDotUID=brands&parentredDotUID=brands&BU=ut&countryCode=us&brand=0000000389

Click on threadlocking, you can then click each product, and then go to the pdf and read all the tech of each. Like I said it's not an easy website to begin with. Their paper industrial catalog isn't much better until you get on to it.

LOG

[Dreadnought]

http://www.henkelna.com/cps/rde/xchg/henkel_us/hs.xsl/1556_USE_HTML.htm?redDotUID=brands&parentredDotUID=brands&BU=ut&countryCode=us&brand=0000000389

Click on threadlocking, you can then click each product, and then go to the pdf and read all the tech of each. Like I said it's not an easy website to begin with. Their paper industrial catalog isn't much better until you get on to it.

LOGThank you, sir!

[Rick McC.]

I use blue (sparingly). Never had to use it more than once.

Rick

[jwenum]

I'll go along with Hawkmoon--Blue Loctite is the best..Red used to be a 'stud&bearing mount'..Sounds a little TOO much for me.