Lox screws have twelve contact points, one for each side, many more than the four contact points on Phillips or Robertson screws. This makes Lox screws well-suited to high-torque applications in ...

The Robertson socket head screw soared in popularity. Craftsmen favoured it because it was self-centring and could be driven with one hand. Industry came to rely on it for the way it reduced ...

It’s a brilliant design—Robertson screws won’t easily cam out, and the socket shape helps center the screwdriver, making one-handed operation easy. GREGORY REID A slotted, flat-head screwdriver.

A century ago, a traveling salesman named Peter L. Robertson invented a new kind of screwdriver -- and its companion screw -- so prompted after he sliced himself silly with a flathead.

If you've ever mistakenly grabbed the Phillips head screwdriver when you needed a flat head, you've probably asked yourself why there are different types of screws. Let's start at the beginning ...

Some screws come with a combination Phillips/Robertson head. No matter what type of screw you're driving, you'll have the most success, and end up with the neatest job, if you follow the simple ...

Ever since, the Phillips screw has dominated the U.S. market. Down but not out, Robertson stayed in Milton and made sure that every Canadian homeowner used his screws.

The Phillips-head screw and Phillips screwdriver were designed for power tools, ... It turns out that Peter L. Robertson had patented a self-seating, square-socket screw in Canada in 1907.

Both Torx (star-shaped) and Robertson (square-shaped) screwdrivers and screws are made to resist cam-out, the frustrating thing that happens when your screwdriver head slips out of the screw.