How types of screw heads can Save You Time, Stress, and Money.
One facet of the bolt thread retains into your Wooden with the assistance of a self-tapping lag screw, when one other aspect characteristics machine bolts threads for just a nut. A quick glimpse might give the impact that these are a Philips kind screw, but such is not the situation. The Pozidriv screw is in fact a phase up from your Philips screw