Button Studs with Self-Drilling Screws are great for metal-to-metal applications and ideal for aluminum boats. The 18-8 stainless-steel screw offers superior corrosion resistance. Seachoice is committed to delivering quality marine accessories and OEM replacement parts to satisfy fishing, boating and watersports enthusiasts worldwide. Seachoice is run for and by boaters, offering a wide-ranging product line while remaining affordable. 18-8 Stainless steel offers superior corrosion resistanceIdeal for aluminum boatsSize: #8 x 1/2 inchStud with flangeGreat for metal-to-metal applicationsManufacturer part number 50-59387