Hellow , Any body knows what is the screw size (thread) on Tikka T3 varmint receiver ?
I tried the common mount screws ( 6-48 or 8-40) and the they dont work I want to put a picantinny rail (I have it) but I dont have the right screws.Thanks ;Guillermo.

Which thread are you talking about? the small hole on top of the reciver?

Montes. The small hole on the top and front of the receiver is for the optilock stopping pin, I just want to know the screw size (thread of the 4 treaded small holes) for the base mount, I have a Warne premier mount but I dont have the screws, and the common american base screws (6-48 or 8x40) doesnt fit, maybe they are the 6-40??? I dont know.Thanks for answering. Regards

It´s the same thread as weaver uses for their base screws.

The owner manual says the plug screws in the receiver are M3.5x3

Receiver is also tapped to receive standard (Weaver) scope mount bases.

TIKKA Homepage

quote:

Originally posted by jnd:
Receiver is also tapped to receive standard (Weaver) scope mount bases.

TIKKA Homepage

Yep, M3.5x3.

I believe the S61 Weaver base is the one that fits that rifle.

The Weaver bases come with screws, and are inexpensive. So if you can't find the screws just order the bases

quote:

Originally posted by Guillermo Amestoy:the common american base screws (6-48 or 8x40) doesnt fit, maybe they are the 6-40??? I dont know.Thanks for answering. Regards

Well, quite obviously american thread screws will not fit the European rifle. Metric standards are in use in most of the civilized Europe (and slowly the rest of the world)

So, listen to others who said the correct one and forget the US stuff.