From The Manufacturer
Drain Lock, Floor Sink, 4 in, T45, Material: Stainless Steel, Outer Diameter: 4 3/8" | 111 Mm, Includes: #45 (T-45) Tamperproof Torx Screws, Type: Hybrid, Depth: 2" | 51 Mm, Note: Use Fmp# 142-1605 Screwdriver To Install/Remove, NSF Certified: Y,
