P-Tite is a special function screw registered product of Nitto Seiko (a resin self-tapping screw). It is a screw specifically designed for plastic materials. With a double-lead screw design, it allows for faster threading, thus significantly improving work efficiency. Additionally, it helps reduce whitening and cracking of bosses, as well as prevents screw slippage (stripping). (Quoted from the Nitto Seiko website).