A: This flat washer is grade 304 stainless steel. Like all stainless steel, it will eventually rust, but this 304 stainless steel is very good protection against rust compared to brass, zinc plated, or galvanized washers.
A: Have been using these for years. No rust issues. They are used outdoors and exposed to the elements. Not sure of the exact metal make-up.
A: This is neither of the two numbers listed. Please rectify.
A: Thank you for your question. Inside diameter = .24”, Outside diameter = .625”, and thickness = .049”.
A: The OD for this product is 5/8 inches.
A: This flat washer OD is 5/8 in.
A: This washer has an outside diameter of 0.64 inches.
|Name||1/4 in. Stainless Steel Flat Washer (6-Pack)||#10 Stainless Steel Flat Washer (12-Pack)||#8 Stainless Steel Flat Washer (12-Pack)||5/16 in. Stainless Steel Flat Washer (5-Pack)|
|Fits Bolt Size||1/4 inch||#10||#8||5/16 inch|
|Outside Diameter||5/8 in||1/2 in||7/16 in||7/8 in|
|Material||Stainless Steel||Stainless Steel||Stainless Steel||Stainless Steel|
|Inside Diameter||5/16 in||7/32 in||3/16 in||3/8 in|
|Grade||304 Stainless||304 Stainless||304 Stainless||304 Stainless|
|View Product||View Product||View Product||View Product|