Spring Self-Closing Hinges, 4" X 4" Square with 5/8" Stainless Steel - 2 Pack - Adjustable Door Closing Pair of Adjustable Spring Hinges - Self Closing - Door Closing Adjustable tension Includes matching screws and hex wrench For door thickness 1 5/8" - 1 3/4", Gauge .106 (2.7 mm) Stainless Steel - Highly Rust Resistant