#10 x 1/2 Tamper-Resistant Self Drilling Screws, Torx® Equivalent 6-Lobe with Solid Post, Undercut Flat Head, Driver Size: 20TXH, Case Hardened Steel Zinc Plated

Torx® Tamper-Resistant Self-Drilling Screws eliminate separate drilling and tapping operations for faster, more economical installations. Torx® Tamper-Resistant Self-Drilling Screws provide a sharp, clean and consistent drill point, excellent thread engagement and holding power. The Torx® Tamper-Resistant Drive System has the ability to transfer greater torque, reduce end load and virtually eliminate tool slippage.