Metric Bolts: A Variety of Options

Do your eyes glaze over at all the metric bolt choices? We know it can be kind of confusing, especially if you’re not used to ordering metric parts. Let’s look at the meaning of some common terms in the world of “bolt-ology.” Bolts have different heads that identify their use for different applications. Hex bolts,…

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…