Question Cowl screws for CubCrafters cubs?

[Neal]

The cowl screws CubCrafters use seem quite soft, guessing they're aluminum. I have spares but does anyone know the source of these? There are 4 long ones and the rest are standard. I'd love to know where to get them should I decide to replace them more frequently if I had a bulk supply on hand.

 

[Cactus Charlie]

Stainless and available from Aircraft Spruce. I don't have the size or part number at home. Measure the ones you have.

Don't use a fast electric driver on stainless screws that use captive steel locknuts. The screws may gall. The grip of the locknuts is very variable. A tiny application of anti-seize may stop the tight ones from galling the screws.

I have spare screws and washers in case I drop one in a hangar floor crack. None damaged.

edit to add: CubCrafters sells a screw kit and includes the individual part numbers -

Misc Hardware & Screw Kit for CC11-100, CC11-160, EX2, EX3

store.cubcrafters.com

and

MS24693 Machine Screws (AN507) | Aircraft Spruce ®

MS24693 Machine Screws (AN507) These non-structural screws have a flat countersunk head, 100deg cross recessed head.

www.aircraftspruce.com

 

[Neal]

I only use the manual screwdriver, no electric tools.

 

[Cactus Charlie]

Extract from my Spruce orders file (confirm before ordering) -

PN Description Quantity Price Notes

AN507C632R8 SS MACHINE SCREW MS24693C28 25 0.1 6-32 1/2 inch for cowling etc.
AN507C632R10 SS MACHINE SCREW MS24693C29 25 0.08 6-32 5/8 inch for cowling etc.