Due to the range of screws available on the market today, it is important to select the correct screw for any given application.
For instance: Some screws are only intended to be tightened by hand and as such, the head may sheer off if driven by a drill. Other screws are not intended for marine applications and may fail due to corrosion within a year of exposure. Most screws have a thread with a clockwise rotation, known as a right hand thread. However in some applications to prevent loosening due to rotational forces, it is necessary to employ the use of a screw with a counter clockwise rotation, known as left hand thread. In some applications the head of a phillips or flat drive type screw may strip, in such cases a square or hex drive screw may be required.
If at all unsure, please feel free to contact our office for advice regarding our products at your earliest convenience.