I am mounting a Lyman #2 Tang sight on a Winchester '94 and cannot find any info regarding the size and thread pitch of the forward mounting screw. I have the screw but will have to drill and tap the hole. Any advice is appreciated. Thanks.
Take the screw to any bolt supply store in town, they can identify the thread size and pitch for you...they may even have the tap avail. if it is the original "gun thread" (be prepared for sticker shock tho) size.