[Tony G.]

The ITEM "Automatic fastener does have a high strength to weight ratio and is a good fastener - If you can afford it.
I advise against these types of fasteners because as it was pointed out in a previous post, THEY ARE SUSCEPTABLE TO VIBRATION. Field experience has shown they have poor seismic characteristics. A good fastener to combat this problem which team will encounter this year, are the fasteners BOSCH makes with serrated grooves on the fasteners. They meld into the aluminum T-slot and become vibration resistant. They actually carry a catalog specification for seismic loading, shear and tensile strength. The BOSCH fastening system is the best I've seen and I've researched 13 major brands.