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The Simmonds standard range of nuts is based around the original Nylstop self-locking nut, renowned for its performance and reliability. Following large scale investment, Simmonds have evolved their capability to include production of innovative, high-precision bespoke nuts, cold forged specials and high precision screw machined parts, all available in a wide range of materials and coatings.

Applications - Engine brackets, wheel axle nut and any other application where a re-usable locking nut or cold forged special is required.

Nylstop Nut

The original Simmonds Nylstop nut incorporates a nylon collar within the nut as the primary locking mechanism. This allows the nut to lock on the bolt providing a much stronger hold than standard nuts. Nylstop nuts are re-usable up to 15 times without performance loss.

Standard Nuts

Simmonds offers a wide range of other standard nuts including anchor nuts, cage nuts, weld nuts and washer nuts each with its own distinct features.

Special Nuts

Simmonds has the ability to make a wide range of nuts to customer specification. The Simmonds design engineering team is highly experienced in developing innovative solutions to difficult problems.

Manufacturing Capabilities

Simmonds through their team of highly skilled engineers and advanced equipment can design, prototype and manufacture virtually any machined part to fit your requirements.


Want to know more?

Arconic Fastening Systems would like to help you find the perfect product for your agricultural applications. If you cannot find what you are looking for on our website or would like to know more about any of our products or services, or how our products can fit into your existing manufacturing program then please contact us by filling out the form below.

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Schliessen About Arconic Fastening Systems

Fastening solutions for agricultural machinery.

Arconic Fastening Systems was established in 2002 with the intention of providing a complete range of robust fastening solutions for a wide range of manufacturers in the agricultural machinery industry and more.

The Arconic Fastening Systems product range currently offers the greatest breadth and depth of fastening solutions available including: self-locking nuts, quick-release fasteners, draw latches, door access systems, wire thread and solid inserts, lock-bolts & structural blind fasteners.

Our range of fasteners can be used to provide strong joints which are permanent and tamper-proof as well as those where quick access for maintenance is required and fasteners need to be frequently removed and re-installed. But all of the fasteners in our range have one thing in common: Quality assurance. All of our fasteners are manufactured and tested according the highest quality standards and procedures. We understand that our fasteners can be critical in providing safe joints for your final products.

Benefits of working with Arconic Fastening Systems:

  • Vast experience in a myriad of markets including agriculture
  • A huge range of different fastener brands and products available
  • Focus on providing excellent, safe products and exceptional service