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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.

C-Spec 4000 Series Fastener Sets
C-Spec 4000 Series Fastener Sets

The studs in these sets are Stainless Steel with a bright and shiny passivated finish as per AMS2700 which provides excelent corrosion resistance. The receptacles are aluminum. Additional lengths and other finishes are avaialble upon request (minimums may apply).

These fastener sets have a working load of 800# tensile and a maximum of 1050# tensile, maximum shear is 2000#. They are recommended for applications subjected to adverse conditions, such as: significant continuous vibration, potential impact or semi-structural loads. Recommended for most heavy duty applications such as aircraft cowlings, vehicle fairings, heavy panels, etc. The face diameter of these fasteners when locked is 5/8" (.625") and the panel hole diameter is 15/32" (.468").

Please make your selection from the options below. The 4000 Series fastener sets can be used for any application with an inner flange mounting width of 1.125" or more. Distance from the edge of the panel to the center of the fastener hole requires 5/8" minimum. Weight is approx. 8.4 grams per set. We recommend 3.5" to 4" spacing between fasteners.

Two installation tools are required, C-Spec pliers part number 4P3 and retaining ring tool part number MS-T26. These can be found on our Tools Page.

Price Breaks: The per each price is displayed with the product. Quantity based discount prices are automatically generated and shown when the item is added to the shopping cart. The breaks are at the following quantities: Each, 5, 10, 25, 50, and 100 pieces. Please Contact Us for a quote on larger quantities.

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.


Price:
$9.49
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4002 Series C-Spec, Slotted Head, Stainless Fasteners

Price:
$9.49
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4002 Series C-Spec, Phillips Head, Stainless Fasteners
Price:
$11.99
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4002 Series C-Spec, Wing Head, Stainless Fasteners
    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
    352-735-0065
    352-735-0504 (fax)
    milspecprod@earthlink.net
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