FLOWpoint Delta PT is an innovative fastener designed to join highly engineered carbon fiber reinforced plastics (CFRP) with other materials.FLOWpoint Delta PT is a self-piercing and self-tapping fastener that penetrates both the clamped and mating material without a pre-hole. FLOWpoint Delta PT has an optimized Delta PT thread geometry that forms strong female threads in CFRP materials.