Eyelet Purlin Screw Socket Driver (EPSSD) used in conjunction with the Eyelet Purlin Self drilling Screw (EPSN) provides a one-step solutions for attaching tie wire systems to metal purlins. The screw entails a 4mm eyelet, EPDM sealing washer, and self-drilling point rated to drill through 1.2 to 1.6mm mild steel. Perfect for applications such as suspending ceilings, attaching cable ties, support wires and ducting systems.