316 Stainless Steel Fender Washers

Why choose 316 for fender washers?

316 stainless adds molybdenum for far better resistance to salt and chloride pitting than 304 or 18-8, so a 316 fender washer combines that marine-grade protection with the wide bearing surface that stops nuts and bolt heads from pulling through thin material. It suits boats, docks, coastal railings, and wash-down equipment where thin sheet or soft material needs both load spreading and corrosion resistance. Pair it with 316 stainless bolts and nuts so the whole joint shares the same protection. For general freshwater use, 18-8 or 304 is more economical.

Why choose 316 stainless fender washers

• Marine-grade corrosion resistance: molybdenum-alloyed for salt and chlorides.
• Wide bearing: oversized diameter resists pull-through in thin material.
• Non-staining: will not rust-streak the mounting surface.
• Match grade: pairs with 316 stainless hardware.

Common applications for 316 stainless fender washers

• Marine, dock, and boat hardware
• Coastal and saltwater exposure
• Thin panels in wash-down environments
• Chlorinated and chemical settings

For general freshwater use, see 18-8 stainless fender washers, and browse every material on the main fender washers category.

316 Stainless Fender Washers FAQ

Why choose 316 over 18-8?

316 adds molybdenum for much better resistance to salt and chloride pitting, making it the choice for coastal, marine, and wash-down use where 18-8 could corrode.

Is 316 the same as A4 metric?

A4 is the metric grade comparable to 316. Both are molybdenum-alloyed marine-grade stainless.

Why use a fender washer instead of a flat washer?

The oversized diameter spreads load over a much wider area, which resists pull-through in thin sheet metal, wood, and plastic.