Mainspring screw

eddiejoe333 · March 12, 2014, 12:07 PM

I have a Smith and Wesson 28-2 6-inch, made in the 1980's. The screw on the frontstrap keeps backing out, causing the trigger to move forward as the hammer drops. When I tighten the screw, the problem stops.

Can I use Loctite on this screw, or is there a more sensible solution?

Dixie Gunsmithing · March 12, 2014, 12:31 PM

Yes, you can use purple or blue Loctite, which is for light and medium strength, non-permanent, thread locking.

burrhead · March 12, 2014, 12:42 PM

For light applications like that I use clear nail polish.

eddiejoe333 · March 12, 2014, 01:15 PM

Thank you both! I think I'll go with Loctite.

Ed

Sharkbite · March 12, 2014, 01:23 PM

The Strain screw on the face of the front strap is designed to place pressure on the hammer spring. It is not designed to be a point of adjustment. Although loosening the screw will result in a lighter trigger pull it is at the cost of hammer speed and inertia.

Apply a bit of clear nail polish or removable loc-tite and tighten the screw down.

Back in the day when i carried a Revolver as a duty gun the strain screw and the ejector rod threads both got that treatment. Either one backs out and youve got problems.

eddiejoe333 · March 12, 2014, 02:20 PM

I agree Sharkbite!! I'm not ready to take it to the range because the rear sight blade is broken. I know it isn't supposed to be an adjustment point. The trigger started getting too light, so I tightened it back up.

March 12, 2014, 12:07 PM	#1
eddiejoe333 Senior Member Join Date: March 11, 2009 Location: Phoenix, AZ Posts: 230	Mainspring screw I have a Smith and Wesson 28-2 6-inch, made in the 1980's. The screw on the frontstrap keeps backing out, causing the trigger to move forward as the hammer drops. When I tighten the screw, the problem stops. Can I use Loctite on this screw, or is there a more sensible solution?

March 12, 2014, 12:42 PM	#3
burrhead Senior Member Join Date: July 6, 1999 Location: Chihuahuan desert, Texas Posts: 1,148	For light applications like that I use clear nail polish. __________________ Join the GOA, SAF and the TSRA I'm offended by people that are easily offended.

March 12, 2014, 12:31 PM	#2
Dixie Gunsmithing Moderator Emeritus Join Date: April 27, 2013 Location: Ohio Posts: 1,923	Yes, you can use purple or blue Loctite, which is for light and medium strength, non-permanent, thread locking.

March 12, 2014, 01:15 PM	#4
eddiejoe333 Senior Member Join Date: March 11, 2009 Location: Phoenix, AZ Posts: 230	Thank you both! I think I'll go with Loctite. Ed

March 12, 2014, 01:23 PM	#5
Sharkbite Senior Member Join Date: November 4, 2013 Location: Western slope of Colorado Posts: 3,679	The Strain screw on the face of the front strap is designed to place pressure on the hammer spring. It is not designed to be a point of adjustment. Although loosening the screw will result in a lighter trigger pull it is at the cost of hammer speed and inertia. Apply a bit of clear nail polish or removable loc-tite and tighten the screw down. Back in the day when i carried a Revolver as a duty gun the strain screw and the ejector rod threads both got that treatment. Either one backs out and youve got problems.

March 12, 2014, 02:20 PM	#6
eddiejoe333 Senior Member Join Date: March 11, 2009 Location: Phoenix, AZ Posts: 230	I agree Sharkbite!! I'm not ready to take it to the range because the rear sight blade is broken. I know it isn't supposed to be an adjustment point. The trigger started getting too light, so I tightened it back up.