Should a Washer Go on the Nut Side or the Bolt Side?

If using just one washer, place it on the nut side.

Reasons for this placement include:

• The nut has a smaller surface area in contact with the material than the bolt, making the washer more effective in distributing the load.
• Placing the washer under the nut helps prevent damage to softer materials, like wood or plastic, and ensures a more secure hold.
• In some cases, using stainless steel washers on both sides may be necessary for optimal performance in structural applications.