Milspec Products, Inc

These kits will convert the original style fasteners to MilSpec's far superior C-Spec fastening system. Kits include new fasteners, grommets, and retaining rings, all in bright and shiny stainless steel. Plus, new receptacles, drill templates, alignment guides, attachment hardware and complete instruction documents with a copy of the STC for your log-books. You have the choice of Slotted Head or Phillips (cross recess) Head fasteners. Our slotted head studs have a unique enclosed (collared) slot which prevents the screwdriver from slipping out and damaging expensive paint. Our Phillips heads are a standard #2 size. Don't forget about installation tooling. If you need guidance as to which tools may be required for your particular selection, please contact us and we will let you know. We keep all installation tools in stock for purchase or rental.

• SeriesC-Spec 2000

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 strength of 300# tensile and shear, and weigh approx. 7 grams per set. They are recommended for non-structural, general purpose applications. Please make your selection from the options below.The panel hole diameter is 14" (.250") minimum. They can be used for any application with an inner flange mounting width of 34" (.750") (19mm) or more. Distance from the edge of the panel to the center of the fastener hole requires 916" (.562") (14.27mm) minimum. We recommend 3.5" to 4" spacing between fasteners.

These stainless cowling kits replace the old, worn and rusted quarter turn fasteners originally installed on your aircraft with top quality, FAA approved stainless replacement fasteners. Typical IPC (illustrated parts catalog) and maintenance manuals are not accurate when compared with what is actually in the aircraft. That's why MilSpec kits have been refined over many years with research on the flight line and hands on field experience. Our kits are Guaranteed to fit your particular year, model and serial number aircraft the first time, right out of the box which saves you time and money!

These fasteners are common to BeechCraft airplanes and latches on some Piper cowlings along with other industry uses. The design consists of a simple stud, with a cross pin pressed into the shank. The pin must be pressed in after the stud is inserted through the panel hole and removed from the stud prior to removing the fastener from the panel. Most applications use a flare type grommet in the hole to protect it from wear due to vibration. Unlike other fastener styles, this grommet may not require replacement when installing new studs. However, we do carry new grommets in the event that replacement is required. The stud's head diameter determines the stud series. Each stud series is available in either a countersunk (flush) or a round head style. Stud diameters and head styles are specified in the Base Part Number. Studs come in different Total Lengths (blank lengths) which are indicated by the first dash number. The second dash number denotes the maximum total material thickness (TMT, grip length) the stud can accommodate in thousandths of an inch. Each stud blank length can have up to ten (10) second dash numbers, or grip sizes. These dash numbers are stamped in the head of the stud for easy reference. A-Spec fasteners have the least grip range between sizes of any quick release fastener (0.010"). Therefore, it is important to measure accurately when using them.

Trying to install fasteners and fit panels can be a real problem if you don't have the correct tools. Having the right tools for the job makes all the difference! We carry all the installation tools required for any project and keep them in stock at awesome prices. We even design our own tools using the lessons we have learned from 20+ years of hands on experience to make installation easier and quicker!

When using Z-Spec fasteners you will need at least 2 parts to make up the system. A stud, and "S" Spring Receptacle. Optional Grommets, Retainers, Weld Tabs and ancillaries may be required depending on how you want the assembly to perform. When designing a new application it is best to select components from the inside out. First, determine which series (diameter) and Spring Receptacle you want to use. Next, select the Grommet or Retainer you wish to use (if required). Then, select a Stud Length (dash number) for the Total Material Thickness (TMT) Finally, select a Stud Style and Material.