TYPES OF SCREW HEADS FUNDAMENTALS EXPLAINED

There are far more heads get more info that are available, but all absolutely are a variation or mixture of these pursuing essential designs: intended so which the screw sits flush Together with the surface area being mounted, making sure that The top will not likely capture. The head will have to be countersunk, learn extra right here these are

The Ultra-Lok, and extremely-Lok II are A few of these designs more info that use customized keyed drivers, which tend to be confined to industrial and institutional takes advantage of which are unavailable to the normal layperson. critical-Rex screws are A different style, and so are Employed in this sort of items as ballot boxes and lender vaults