PLASTITE® 45 screws represent the latest refinement of the cost savings and performance capabilities of TRILOBULAR™ technology for assembling plastic components. The TRILOBULAR™ shape makes use of the plastic’s natural resiliency and creep characteristics, allowing the plastic to fill in the depressions between the lobes. This helps lock the fastener in place providing prevailing torque if fastener removal is attempted. Years of research revealed that exceptional performance could be achieved by combining the TRILOBULAR™ shape with the following attributes: Wide thread spacing &Narrow thread angle. The extra wide thread spacing and more acute thread angle of PLASTITE® 45 screws keep induced stress to a minimum during the thread forming operation. These attributes also permit a deeper thread without increased drive torque. Also, the extra wide thread spacing allows stress to be dispersed over a greater area in the plastic boss or nut member, and the plastic material remaining between the threads is left strong and intact, thus providing for high assembly loads and stripping resistance. The narrow thread angle also reduces stress by displacing less material and creating less bursting pressure.