They hold together everything from the most delicate watch to the largest bridge. The world is literally kept from coming apart by screws and bolts, and yet we don’t often give a thought to these ...

Thread taps are an essential part of any mechanic’s toolbox-- mostly because, well, you will ruin some threads. Or, as is the case for YouTube user This Old Tony, you’re fabricating parts from scratch ...

The new CHT Thread Inspection System from The Johnson Gage Co. (www.johnsongage.com) with an extended range of measurement capability was designed for in-process inspection of large-diameter parts.