The first nuts and bolts appeared in the middle 1400's ... the whole world - the ISO Inch Screw Thread System, and the ISO Metric Screw Thread System. But I was still left with a door handle ...

It’s not much of a stretch to say that without nuts and bolts, the world would fall apart. Bolted connections are everywhere, from the frame of your DIY 3D printer to the lug nuts holding the ...

For those times when you could really use a quick 3D model, this metric screw generator will do the trick for screws between M2 and M16 with matching nuts and washers. Fastener hardware is pretty ...