Assembly of Frames with Stock Bars & Braces
The first step is to fasten the brackets to the stretcher bars. Measure and mark the center of the bar and the bracket, and using 2 screws, attach the bracket to the bar with the back edges of the bar and bracket flush (see drawing below).
Drive the screws in so that the heads are flush or slightly below the surface. CAUTION: to avoid splitting the wood do not drive the screws too deeply into the brackets.