Metric 18-8 Stainless Steel Keps K-Lock Nuts

How do I size metric Keps nuts?

The captive washer means there is nothing to align, drop, or lose, so metric assembly is faster and the external teeth still bite the surface for locking and electrical grounding. In 18-8 stainless the nut resists corrosion for outdoor and damp use, and it is effectively non-magnetic for electronics work. The key rule is the same across Keps nuts: never over-torque, because over-tightening flattens the washer teeth and the nut loses its locking action. Match the nut to your metric bolt's thread, such as M4, M5, or M6.

Why choose metric 18-8 stainless Keps nuts

• Metric threads: sized for M-series bolts and screws.
• One-piece speed: captive washer means no separate washer to handle.
• Locking and grounding: external teeth bite the surface.
• Corrosion resistant: 18-8 stainless holds up in wet and outdoor use.

Common applications for metric Keps nuts

• Metric electrical panels and enclosures
• Imported machinery and equipment
• Production and repetitive metric assembly
• Outdoor and damp electrical hardware

For inch sizes, see 304 stainless Keps nuts, and browse every material on the main lock nuts category.

Metric 18-8 Stainless Keps K-Lock Nuts FAQ

What threads do metric Keps nuts come in?

Common metric threads such as M4, M5, and M6. Match the nut thread to your metric bolt or screw.

Why should I not over-torque a Keps nut?

Over-tightening flattens the washer teeth, and once flattened the nut loses its locking function. Tighten to the correct torque, no more.

Is 18-8 stainless magnetic?

18-8 is austenitic and effectively non-magnetic, which suits electronics and instrument work.