Torx TTAP Cypress Stainless Steel Hidden Deck Fastener; 1050 Per Box. SpecificationsLength: 2-1/2 in.With the continued vision to be the best, most helpful hardware stores on the planet, Ace Hardware and its retail associates remain dedicated to the core value of quality for its customers.Drive Style: Torx TTAPFinish: CypressMaterial: Stainless SteelType: Hidden Deck FastenerContainer Size: 1050 per boxThread Type: CoarseSelf Tapping: YesCountry of Origin: TaiwanWeight: 12.