Metric 18-8 Stainless Steel Split Ring Lock Washers (A2)

How do I size metric split ring lock washers?

Metric split ring lock washers are sized to metric bolt diameters such as M4, M6, M8, and M10, and in 18-8 stainless, comparable to metric A2, they add corrosion resistance for outdoor and freshwater use. As the fastener is torqued, the sharp ends bite the surface and the spring holds tension against loosening. Match the washer to your metric bolt size and pair it with A2 metric bolts and nuts. For coastal or saltwater exposure, step up to A4 metric, comparable to 316. Tighten to the correct torque and avoid over-tightening.

Why choose metric 18-8 stainless split ring lock washers

• Metric sizing: matched to M-series bolt diameters.
• Corrosion resistant: 18-8 stainless (A2) resists rust outdoors.
• Vibration locking: split ring bites the surface to resist loosening.
• Match grade: pairs with A2 metric hardware.

Common applications for metric 18-8 split ring lock washers

• Metric machinery and equipment
• Imported and automotive hardware
• General outdoor metric assembly
• Freshwater and damp metric joints

For coastal metric use, see A4 metric stainless split ring lock washers, and browse every material on the main lock washers category.

Metric 18-8 Stainless Split Ring Lock Washers FAQ

Is A2 the same as 18-8 stainless?

A2 is the metric designation comparable to 18-8 and 304 stainless, with similar corrosion resistance.

What metric sizes are available?

Common metric diameters such as M4, M6, M8, and M10. Match the washer to your metric bolt size.

Which metric grade for coastal use?

Use A4 metric, comparable to 316, for coastal and saltwater exposure. A2 suits general outdoor and freshwater use.