Complete your tasks right with the Handi-Man Marine Self-Tapping Phillips Oval-Head Screw Set. These screws are made of durable stainless steel. Ideal for a variety of marine uses, the Handi-Man Marine Self-Tapping Phillips Oval-Head Screws are a vital addition to your tool kit. Imported. 14L x 1-1/2. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Hardware.