A screw is a type of hardware fastener that attributes its mechanical capabilities to the helical groove that extends around the circumference of the device's shank. These threads provide the friction ...

Two mistakes you really want to avoid are busting off a chunk of a concrete stair step and cracking the corner of a patio ...

you’re bound to run into rusted screws. As long as you keep the right tools and supplies on hand, you can undo even the most stubborn fasteners. The key is to think of rust as just another form ...

or vacuum in combination is usually sufficient to clean out the hole before inserting the screw. This has been a brief overview of some of the available concrete fasteners and their applications.

In fact, I have titanium screws in my skull, but that's another story. In the USA, about 600 companies make fasteners. They employ about 60,000 workers, and make about 250 billion fasteners each year.

For all imperial unit screws, tolerance range is .002 and .004 inches below the labeled size. Metric tolerances change according to the predetermined diameter. Hardware fasteners, like screws, are ...