Panel Fasteners : Captive Screws : Installation Procedures

Installation Procedures

Captive fasteners use the swage (flat collar Figure 1) or flared (100º or 82º countersink figure 2) method of upsetting the sleeve to captivate the assembly to the panel.

Figure 1




Figure 2

There are three types of holes suitable for captive fastener installation.

Type one: Through-hole
This type of hole is suitable where there is a gap or gasket between top and bottom panels or when flush mating of panels is not required.

Type two: Counter-bore hole
Counter-bore holes maximizes holding power and provides flush mating between top and bottom panels.



Type Three: Counter-sink hole
Countersink-holes are suitable where panel thickness permits. Provides flush matting between bottom and top panels.
 
Note: See engineering standards for recommended hole diameters and counter-bore/counter-sink depth and installation tools.

Related Information


Captive Screw (Tucson) Drawings


Troubleshooting Installations

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