Where did Metric Screws Come From?

A Brief History of the Screw We use metric screws and screwdrivers all the time – but where did these ingenious devices come from? They weren’t always there, after all. Here’s a little mini-history of everyone’s favorite fastener. The basic idea of the screw first came about in the 1st Century A.D. But these early…

Selecting the Power Tool to Suit the Joint

To help ensure that you achieve the torque accuracy required of your application, it is important to select a power tool with low scatter and low mean shift. Joint stiffness varies, so it’s necessary to make an allowance for it to achieve the proper torque. Fitting screws into steel without interlining components is one example…

Stainless Steel Fasteners Mr Metric

The Facts About Stainless Steel

You’ve probably heard a lot about stainless steel this and that. But what’s the big deal about stainless steel — and when do you need to choose stainless steel fasteners for your project? First let’s examine what goes into stainless steel that makes it, well, stainless. Ordinary carbon steel met the world’s steel needs for…