TYPES OF SCREW HEADS FOR DUMMIES

in case you’re owning problems differentiating among Phillips and Pozidrive screws, take a look at each within the side—the latter could have ribs in between Each and every of the 4 arms, marked that has a “pz”. The double-sq. drive is two squares superimposed at forty five° rotation, forming an 8-pointed star. the look is similar to the