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 ...

Twist drills do not make accurately sized or good finish holes; a reamer of some type is often used to cut the final size and finish. A reamer will not make the original hole; it will only enlarge a ...

The new taps include (top to bottom) Paradur® Ti Plus for threading blind holes in titanium alloys; Paradur® Ni 10 for tapping nickel-based super alloys, such as Inconel 718; and Prototex® TiNi Plus ...

Self-tapping screws are designed to create their own threads as they are driven into masonry. Unlike other fasteners, contractors do need to drill a hole or tap threads in a separate step. This ...