10 Pack of Adjustable Spring Hinges - Self Closing - Door Closing 4 inch with 5/8 inch radius corners White Prime - Great for Painting.Includes matching screws and hex wrench For door thickness 1 5/8" - 1 3/4", Gauge .106 (2.7 mm) Delivering quality residential and commercial hinges since 2005 — Hinge Outlet, Inc., proudly US-based. High Quality 10 Pack of White Prime 4 x 4 inches with 5/8 inch radius. These are great for painting. Includes matching screws, 4 hole zig-zag pattern, gauge .106" (2.7MM). Typical use: 1 5/8" - 1 3/4" thick doors. Also known as self-closing hinges or door closing hinges. Sold in Pairs - 2 Complete Hinges