S&W strain screw length K frame

richbug

Does anyone know the what the length of the hammer spring strain screw is supposd to be in a K frame square butt? I changed out the springs in my 15-5 to some lighter ones and it won't even set off federal primers reliably. The end of the screw appears to have been filed off and I need to know where to go. The time from when the screw starts to take up tension on the spring until it is fully tight is only about 3/4 of a turn.

My border collie is smarter than your honor student.

Laredo Lefty

richbug..... Filing off the end of the hammer spring tension screw is a trick some people use to do action jobs on Smith's. It helps to lessen the needed pull on the trigger, but it also weakens the strike of the hammer.

You will likely need to replace the screw.
You can get a new one from Smith & Wesson or Numrich guns parts corp.
I think Smith's web site is <www.smith&wesson.com>.

You can order on line from Numrich at <www.e-GunParts.com>.Their # is (845)679-2417 They do not have a toll free order number. That part, I believe, is called the strain screw.

Joe

"Never let school interfere with your education"

richbug

Thanks laredo, I knew that was a trick people used, I was just trying to isolate the problem before I order the part from numrich. I don't mind buying a $2 part, but the $10 shipping Always kills me. I try to put together a decent order before I place an order.



My border collie is smarter than your honor student.

Der Gebirgsjager

You'd probably do a little better to order the screw from the parts section in the back of the Brownell's catalog and have them send it to you U.S. mail. Free phone call, price of the screw, plus first class postage.