Tapping screws form mating threads in materials they are driven into. There are two basic types: thread forming and thread cutting. The thread-forming screw displaced material around the pilot hole so ...

Translating rotary motion to linear motion is a basic part of mechatronic design. Take a look at the nearest 3D-printer or CNC router — at least the Cartesian variety — and you’ll see some mechanism ...

Single Profile Thread Mills (SPTM) thread small holes with coarse threads in tough materials — a common mold and valve-industry problem. The tools have a solid-carbide-micrograin substrate with a ...

Shoulder screws, also known as shoulder bolts and stripper bolts, are machine screws with an integral shoulder or journal between the head and thread. Although they are not readily available in local ...

A technique to manage an unusual presentation of an implant abutment screw fracture is presented. Causes of abutment screw loosening and fracture are reviewed. Design features that improve the ...

We may receive a commission on purchases made from links. If someone grabbed a random screw from a woodworking shop and asked you to identify it, what would you say? If you just said, "it's a screw, ...