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Machine Screw Nuts

Machine screw nuts are manufactured to be used in tandem with machine screws. They tend to be thinner than standard hex nuts and typically feature flat tops, chamfered or unchamfered corners, and Unified Standard, Class 2B threads. Machine screw nuts provide high-quality fastening in a range of applications.

When you want personalized service, high-quality fasteners, and a supplier you can count on, you want ECS Fasteners. We maintain an extensive inventory of over 48,000 fasteners to meet the needs of any industrial or commercial jobsite. Don’t see the machine screw nut you need? No problem. We’ve partnered with manufacturers in the USA and abroad to provide custom solutions. Get started on your bulk order today!


Available Machine Screw Nut Configurations & Materials

ECS Fasteners’ ready-to-ship inventory of machine screw nuts includes options manufactured from various grades of steel or stainless steel and black oxide, black zinc, nickel, or other finishes. Thicknesses, threads per inch, and thread types differ by model, so shop our available selection and start your order today! We stock:

  • Extra small pattern hex machine screw nuts
  • Large pattern hex machine screw nuts
  • Regular pattern hex machine screw nuts
  • Small pattern hex machine screw nuts
  • Square machine screw nuts
  • Custom machine screw nuts

Applications for High-Performing Machine Screw Nuts

Machine screw nuts feature excellent fastening capabilities for connecting two metal parts together. A few examples of uses for machine screw nuts include:

  • Construction applications
  • Industrial machinery
  • Electronic devices
  • Large-scale industrial equipment

ECS Fasteners: Experienced Professionals. Competitive Prices. Personalized Service.

No matter where your business is located, ECS Fasteners is dedicated to being your local fastener supplier. Our nationwide shipping capabilities allow us to serve companies from California to Maine and everywhere in-between. If you live in Elkhart County or a surrounding Indiana area, ECS Fasteners also offers comprehensive VMI solutions to ensure you are always fully stocked and ready to work.

If bulk machine screw nuts don’t match your application, don’t worry. Our comprehensive inventory also offers:

Start Your Order Today

If you are unsure which nut is best for your planned use or want to learn more about our available machine screw nuts, contact us today. Request a quote to get started on a bulk or custom order. We’re standing by and ready to assist you by providing the fasteners you need on time and within budget.

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