Material: Toilet Seat Screws Are Made Of High Quality 304 Stainless Steel. For Long-Term Use Stainless Steel Bolts Are More Stable Than Ordinary Screws And Prevent The Toilet Lid From Slipping. Size: The Length Of The Quick-Install Heavy-Duty Toilet Bolts Is About 2.36 Inches. Measurement Is By Hand. Please Refer To The Actual Object For Specific Details. Easy To Install: Universal Toilet Seat Hinge Bolts And Screws Are Included. Installation Can Be Done With Common Tools And Takes Only A Few Minutes. Firmly Attach The Toilet Seat To The Toilet Seat A Useful Tool For Toilet Seat Repair. Wide Compatibility: Bolt The Replacement Toilet Seat Hinge Bracket Is Universally Suitable For Most Standard Toilet Seats. Suitable For Toilet Seat Repair Or Replacement They Are Stable And Do Not Wobble. Quantity Included: Stainless Steel Top Mounting Bolt * 228Mm Diameter Plastic Washer * 218Mm Stainless Steel Washer * 2 Extra Washers: Metal Washers Are Stronger Than Plastic. And The Plastic Washers Can Play An Anti-Slip Role. Easy To Install: The Toilet Seat Nuts Can Be Easily Installed In Minutes. Simply Remove The Old Bolts Around The Area And Install The New Ones. New Bolts.