Brand New Fasnap Brand 1/2" Drill Point Self Drilling Screw Studs. Screw size is #8 and is ideal for screwing into the sides of boats or other objects where having the hardened stainless steel male portion of the snap stud is desired. Questions? Send us an e-mail here on Amazon. We respond to all e-mails within 24 hours and usually much sooner. Northwest Tarp & Canvas - Bellingham, Washington