Along with the pitch, or number of threads per unit length, thread friction contributes to the self-locking, or “non-overhauling” property of most screw threads. Self-locking threads easily ...

Screw Thread Forms. Of the various screw thread forms which have been developed, the most used are those having symmetrical sides inclined at equal angles with a vertical center line through the ...

For shoulder screws, the most critical interpretation of screw standards is the thread pitch. Shoulder screws are common on the core engine block in autos. They are suitable for joints that are ...

So, a 20-pitch propeller moves 20-inches each time the blades make a full turn back to their starting positions. These ratings are determined by the propeller’s ability to move through a soft solid, ...

So you’d like to write for Slate—that’s great! If you haven’t worked with us before, here are a few pointers on how to craft a pitch and capture our attention. Do read Slate to get a sens ...

Tinier screws and delicate projects require a smaller tool, and for that we recommend the Megapro 24-in-1 Multi-Bit Precision Screwdriver. In many ways, this is the little sibling to our main pick ...

And to go where no extruder has gone before, [wayne dalton] has managed to combine the rolling screw thread extruder concept directly onto a brushless pancake motor. The result is a filament ...

Whether you’re working on a car, installing a doorknob, or driving a screw by hand into a piece ... Often, there is a cap that threads on and off or pops out of the handle, providing access ...

Historians and researchers have finally solved a long-standing mystery behind one of Victorian England’s iconic architectural wonders. The answer? Simple, standardized nuts and bolts. That may not ...

Each extractor features microplaned reverse threads designed to thread into drilled-out holes to remove stripped screws or bolts with rounded-off or sheared-off heads. Its hexagonal head fits into ...

A running commentary of text messages pertaining to one topic or question. Message threads are used in all forms of user discussions on the Internet, including Usenet newsgroups, Web-based forums ...