This Manufacturing 101 discusses thread whirling inserts and how they work. Thread whirling is a machining process used to produce high-precision external threads on screws. They are commonly used in ...

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.

Spiralock says that, in independent tests, bolts installed into the company's Drive Notch (DN™) wire thread inserts showed no loss of tension after 24 hours of continuous vibration (1 million cycles) ...

Threaded fasteners are a necessity for almost any mechanical device. When making changes to a machine, one can add threads by tapping the part itself, or by using a nut. A nut can even be welded to a ...