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If you know the exact part number, enter it in the search box. Most part numbers require an MS prefix (MS40S5-2S). If you are unsure of the part number, type the first 3 letters or numbers and put an * after it to broaden your search results. Or try our SITE MAP.


Aircraft fasteners cowling kits racing and 1/4 turn studs Made in USA

This website offers general information and easy access to our products. If you need detailed technical expertise, please contact our design team with specific requests.

Pre-Engineered Fastener Systems
Pre-Engineered Fastener Systems

With so many variables and fastener style choices, selecting the right combination of parts can sometimes be confusing. These fastener sets are designed to take the guess work out of fitting panels by combining the most common styles, materials and versatile components into simple setups that take full advantage of our unique adjustable receptacle technology.

That's right, these assemblies are adjustable to fit a variety of panel thicknesses in .015” (0.38mm) increments for a very precise fit. They will fit 90% of common fastener applications with a minimum of calculations. Just select which fastener style you want with the strength capabilities you need, and that's it.

We can substitute other components in these sets. Just let us know what you prefer. If you have any questions or need additional information, please Contact Us.


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  • Pre-Engineered Sets

The 2000 series fasteners are small and have a max. tensile rating of 300 lbs. Several head styles and configurations are available.

The 4000 series fasteners are larger and have a max. tensile rating of 1050 lbs. They are recommended for applications subject to adverse conditions. Several head styles are available.

    About us

    We appreciate the support from everyone that uses Genuine MilSpec Products, and over the years it has been that support which has led to our growth. We will continue to work hard to provide fast, friendly and dependable service that will earn your trust in the future.

    MilSpec makes no claims regarding suitability of any item for any application. It is the responsibility of the purchaser, or installer to ensure proper usage and regulatory compliance.

    All content Copyright 1993 - 2017© MilSpec Products, Inc., All Rights Reserved. Trademarks® referenced are the property of their respective owners and do not indicate affiliation with MilSpec.

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    MilSpec Products
    31537 Long Acres Dr.
    Sorrento, FL 32776
    352-735-0504 (fax)
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