Skybolt Fastener Installation Tips

Vic from Base Leg Aviation shows how to install Skybolt fasteners.
Tools used:
MSC Industrial:
Cogsdill tool (MSC 0575506) deburring bit
blade (MSC 05756234)
A/C Spruce:
100 degree countersink AT455P-4
cage for countersink 12-01591
Boelube solid or liquid
AACQ rivets or AN426 4-3 rivets (as appropriate)
@baselegaviation1614
www.baselegaviation.com

[@donaldleonard1057]

Thanks for the extra on skybolt fasteners Vic. I got mine adjusted properly now.

[@drummondgrinalds1524]

Thanks useful. I’m about to do the same on my cowling. I got the flanges for my -8 so a little easier.

[@garyvanremortel5218]

The old ones required a spring/roll pin to lock the socket position. I don't like the pin so have used a loop of safety wire. The pull pin seems an improvement.

[@slavik2000]

Didn't you damage the tailboom with the first step drill there - made a dimple in the skin? How would you address a damage like that?
Aren't cherry rivets 120 degrees countersunk?

[@davebellairs4790]

It appears as though you have edge distance issues with the top hole. Unless it’s just the camera angle

[@jcheck6]

Vic, what model or part number Skybolt fastener did you use? I have Milspec and they went out of business and need a replacement fastener for one that is failing.

[@baselegaviation1614]

Hmmm. Not certain I remember. They have a catalog online that I used. Pretty straight forward.

[@jcheck6]

Thanks Vic. I contacted them and they put me on the right path. Btw, I purchased your books.@@baselegaviation1614

[@stevemensch9962]

vic, you edit cut the name of the deburring tool, please post the name. thanks.

[@baselegaviation1614]

cogsdill. it’s listed in the comments.