Inserts are classified as two general types: those held in place by external threads and those that use some means other than threads (knurls, grooves, interference fit) for their holding power.

Insert technology has been applied to carbide thread chasers. The need for carbide thread chasers grew as screw machine operators turned to new, harder materials to meet their customers' needs. Now, ...

We have all done it, overtightened a bolt and blown out the threads. When a bolt starts to tighten up and then go suddenly loose, you know that the threads are toast and now you have a problem.

Grooving or recessing operations, sometimes also called necking operations, are often done on workpiece shoulders to ensure the correct fit for mating parts. When a thread is required to run the full ...

Have you ever spent hours perfecting a 3D-printed design, only to struggle with attaching screws or bolts securely? It’s a frustrating experience that many makers and engineers face. Threads are ...

A special thread form keeps bolts and nuts tight under vibration by attacking the problem from a different angle. Two conventional methods for securing threaded fasteners against preload loss include ...