There was no miscommunication. We were basically forbidden from using any letter or number drill sizes. Their complaint was that they could only get a limited amount of drills from a local hardware store, yet they wouldn't tell me what sizes the store had in stock.
I spec'd a hole size of...
We can't really conform to any drawing standards as far as what kind of information gets put on a drawing. Believe me, I would LOVE to be able to do that. Instead, we've been directed by the owner to put as much information on the drawings that we can so the shop guys don't have to think about...
I did a little more digging, and I think I've got the answer. They ARE using the wrong size tap drill. We specified a 1/8" drill, which I know is the wrong size, but let me explain why.
A while back, we would specify our tap holes based either on the chart from EngineersEdge or the hardware...
As a preface, I am not an engineer. I am a CAD manager who is constantly looking for ways to make my drawings more detailed. That said, here's my problem.
We're building a rather complex steel structure (decorative only) and our guys are snapping screw taps left and right. Most of the material...
