SUMBIN Commercial UL Fire Rated 3H 4 x 4 inch Door Hinge with 5/8 Radius Corner in Stainless Steel 304 Material (6 Pack)

["DIMENSIONS: 4 x 4 inch hinges with 5/8 inch radius corner, perfect for standard door installations and replacements","MATERIAL: Premium stainless steel 304 construction provides exceptional durability and corrosion resistance","SECURITY FEATURE: Built-in security pin prevents unauthorized removal from outside when door is closed","PERFORMANCE: UL 3-hour fire rating and heavy-duty design ensures reliable operation in demanding conditions","PACKAGE CONTENTS: Set of 3 door hinges with smooth, quiet operation and all necessary mounting hardware"]