304 Stainless Steel Split Ring Lock Washers

Why use 304 stainless for split ring lock washers?

A 304 stainless split ring lock washer combines light-duty vibration resistance with the corrosion resistance of 300-series stainless for outdoor and freshwater use. As the fastener is torqued, the sharp ends bite the surface and the spring holds tension against loosening. It is the everyday stainless split washer for general work. Pair it with 304 or 18-8 stainless bolts and nuts so the whole joint shares the same corrosion resistance. For coastal or saltwater exposure, step up to 316 or metric A4. Tighten to the correct torque and avoid over-tightening.

Why choose 304 stainless split ring lock washers

• Corrosion resistant: 304 stainless resists rust in wet and outdoor use.
• Vibration locking: split ring bites the surface to resist loosening.
• Non-staining: will not rust-streak the mounting surface.
• Match grade: pairs with 304 and 18-8 stainless hardware.

Common applications for 304 split ring lock washers

• Outdoor and freshwater machinery
• Electrical and appliance assembly
• General light-duty vibration resistance
• Food-grade and wash-down equipment

For coastal use, see 316 stainless split ring lock washers, and browse every material on the main lock washers category.

304 Stainless Split Ring Lock Washers FAQ

Is 304 the same as 18-8 stainless?

304 falls within the 18-8 family, with about 18% chromium and 8% nickel. The terms are often used interchangeably for washers.

Is 304 good for coastal use?

304 handles most outdoor and freshwater exposure but can pit in salt. For coastal or saltwater use, choose 316 or metric A4.

How does the split ring lock the joint?

Its sharp cut ends bite into the surfaces while the helical spring maintains tension, resisting rotation and loosening in light-duty vibration.