Developed by ITW Shakeproof, BosScrew™ is the only screw specifically designed not to loosen in plastic applications. It will remain secure over time, despite temperature changes and under vibration. BosScrews™ provide as much as four times the holding power and a drive-to-strip ratio 66% better than the leading screws being used in today's plastics. This is not merely a new screw for plastic materials but a new concept in how to achieve a secure fastening in plastics.