Grip Removal

[RJ HEDLEY]

The best info I can come up with, is that the grip screw is a 3-48 with 3/16" for the length.

[R9SCarry]

RJ .... threaded portion seems shorter than true 3/16" .... , which'd be 0.1875" ... it seems to mic at 0.161 or so.  I think the depth is pretty critical probably, tho 3/16"  ''NOM'' - might be OK!

I agree .... 3-48 for thread.  I took a while cos drew up a quick CAD sketch ... not to scale but ... close as I can get quickly - this seems to be the screw.  In fact one from left side but assume hopefully - all four the same!!

[RJ HEDLEY]

I think that screw, a flathead, is measured overall for a length. I could be wrong,   well, I COULD be,


   that's a NICE drawing !!

[R9SCarry]

Could well be this countersunk jobbie at 0.246 is in fact a 1/4" nom overall length - so could even be a std item.  What's 4 thou between buddies!

My measuring was quick - with verniers .. if mic'd properly it'd be more asccurate than this.

[RJ HEDLEY]

Somewhere between the two of us is about right.  My screw was an allen head,  and other are saying theirs are Torq head,  so there are varations I'm sure..  I'm going to check around here,  if I find them, I will post here..

[MurrayNevada]

This is where you guys really lose me.  You may as well be speaking a foreign language... although I'm glad folks know about this stuff and that some of those folks are members of this forum.  

[GeorgeH]

Can someone explain to me the thread measurment--"3-48/" I am en engineering moron, but I can learn.

[R9SCarry]

George .. the ''48'' is TPI .... or turns of thread (helix) per one inch of length.  This is coarse thread version TPI - fine would be 56 for this dia.

The ''3'' is a size/dia designation.  In the Unified National system, numbers are used up until 12, and then we go on fractional, with 1/4" first, and on up from there.

TPI increases as dia's get larger.

Help a bit?

[RJ HEDLEY]

I don't think we should be teachin' George stuff.  A small bit of information could become dangerous in un-trained hands.  

[R9SCarry]

A small bit of information could become dangerous in un-trained hands.

Hehe!  

[Richard S]

Eric just sent me eight replacement grip screws.  The packing sheet describes them as ".062 Allen."

RS

[RJ HEDLEY]

Do they take an Allen wrench, or a Torx bit ?

[R9SCarry]

 ".062 Allen." .........

That designation RJ would mean hex' ... Allen.  In fact theoretically the 1/16" Allen should be designated 0.064".  

I wonder if these are any harder.... I must get spares soon when I order some spare springs.

[musician]

Call me old-fashioned, but I don't see anything wrong with using plain old Peacemaker-style domed-head slotted screws.  Sure would make it easier at the range to tweak 'em when they work loose from shooting (and would make replacement a lot simpler!).  I know it would take away from the high-tech "modern" look of the piece, but hardened, stainless, slotted screws would get my vote.

[Kim]

Rohrbaugh has hardened replacement screws. They just sent me two. Also they say use a 1/16 hexhead allen wrench. And the grips are on very tight, I had to work them off very slowly using my finger nail so as not to mar the finish.