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Machine Screw Nuts

Stainless Steel Machine Screw Nuts

What are machine screw nuts? Machine screw nuts are small hex nuts sized for machine screws under 1/4 inch in diameter, used in electronics, panels, and light assemblies. Made from 18-8 and 316 stainless, they resist rust in small, corrosion-sensitive builds where a standard hex nut is too large.

Sizing machine screw nuts to small fasteners

Machine screw nuts cover the small diameters below 1/4 inch, in number sizes like #4, #6, #8, and #10 and small fractional sizes. They match the fine and coarse threads used on machine screws, so the key is pairing the exact thread of the nut to the screw. In 18-8 and 316 stainless they suit electronics, enclosures, and instruments where corrosion would be a problem and space is tight, with 316 for coastal exposure.

Why choose stainless steel machine screw nuts

  • Small sizes: fit machine screws under 1/4 inch.
  • Corrosion resistance: 18-8 and 316 protect delicate assemblies.
  • Non-magnetic: suit electronics and instruments.
  • Grade options: 18-8 for general use, 316 for coastal exposure.

Common applications for machine screw nuts

  • Electronics and circuit board hardware
  • Panels, enclosures, and covers
  • Instruments and light mechanical assemblies
  • Marine electronics and small hardware (use 316)

Pair these with stainless machine screws, and browse every size on the main hex nuts category.

Stainless Steel Machine Screw Nuts FAQ

What grades do machine screw nuts come in?

18-8 and 316 stainless. Use 316 for coastal and saltwater exposure.

What size screws do machine screw nuts fit?

They fit machine screws under 1/4 inch, including number sizes like #4 through #10 and small fractional threads. Match the nut thread exactly to the screw.

Are stainless machine screw nuts magnetic?

18-8 and 316 are effectively non-magnetic, which is useful in electronics and instrument work.

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