Head Nuts

Metric head nuts, including acorn nuts and cap nuts, are used to finish assemblies by connecting to a metric bolt or screw. After the bolt is placed through a pre-cut hole, the nut is installed by screwing onto the end. They are a cost-effective and highly efficient option for constructing assemblies across industries.

Metric & Multistandard Components Corp. specializes in metric nuts, threaded fasteners, and other industrial components. Our extensive catalog includes over 48,000 high-performance industrial parts to ensure you have the right fasteners for your planned assemblies. We offer pricing discounts on high-volume orders to match the needs of your manufacturing or construction operations.

Call 888-966-MMCC or contact your nearest MMCC location to learn more and receive assistance navigating our inventory.

The Difference Between Cap Nuts & Acorn Nuts

Metric acorn nuts and cap nuts are used in applications where the external thread of a bolt or screw cannot be exposed. Installing them improves the durability and overall aesthetic appeal of your assembly. However, there are slight differences. Where acorn nuts feature a domed top to create an acorn-like shape, cap nuts are designed with a slightly curved top. Both deliver dependable and long-lasting performances, and your best choice will depend on the needs of your application.
We offer an extensive range of metric head nuts to match your specifications, but we also understand not all jobs are satisfied by off-the-shelf components. Request a quote today to source specialty fasteners and find your best solution.

High-Performance Acorn Nuts

Also called a hexagon domed cap nut, acorn nuts are internally threaded fasteners with six sides and a domed top. Our DIN 1587 acorn nuts are high-performance options for any assembly, and we offer sizes ranging from M3 to M24, and pitches from 0.5 to 3. A variety of materials are currently in stock and ready to ship:
  • A2 304 Stainless Steel
  • A4 316 Stainless Steel
  • Aluminum
  • Brass
  • Class 6 Steel
  • Plastic

Dependable Cap Nuts

A versatile and high-quality choice for any assembly or construction work, DIN 917 hexagon cap nuts are a cost-effective solution for securing two objects together. They feature six sides, an internal thread, and a slightly rounded top. Our sizes vary from M3 to M30 and pitches from 0.5 to 3.5. Cap nut materials include:
  • A2 304 Stainless Steel
  • A4 316 Stainless Steel
  • Brass
  • Steel

Metric and Multistandard Components Corp.

Metric and Multistandard Components Corp. is the oldest and most experienced fastener wholesaler of Metric Fasteners and industrial components.  Metric & Multistandard stocks over 48,000 high-quality metric industrial components at all five of our locations.  Metric & Multistandard sales staff is technically trained to thoroughly understand the metric fasteners and industrial components that we sell.  Please click request a quote here.  To speak to a sales representative and learn more about Threaded Fasteners, please select one of our 5 locations below to contact us.