TIMco 121Y ZYP Countersunk Ribbed Self Drilling Screw 3.9 x 16 Yellow (Box of 1000)

Zoro Tools

Multiple uses for fitting a variety of hardware to frames where there is a steel or aluminium reinforcement present. Countersunk head with ribs under head for improved countersinking. Please Note : Due to geographical locations we are unable to deliver to Highlands

ManoMano

Features Multiple uses for fitting a variety of hardware to frames where there is a steel or aluminium reinforcement present Self tapping thread with a self drilling point Specification Size - 3.9 x 16mm Bit size - PH2 Colour - Zinc & Yellow Box Quantity - 1000

Amazon

Reinforced PVC Window Screw Self-drilling tip Countersunk head withe Phillips recess, Manufacturer: TIMco