Abstract: Systems, methods, and devices for securing structures include a fastener that includes a threaded body and a head. The head includes a rounded axial protrusion having a first radial diameter, and a noncircular radial portion for securing the fastener. The noncircular radial portion has a second radial diameter greater than the first radial diameter. The noncircular radial portion is positioned between the threaded body and the rounded axial protrusion.

Abstract: Systems, methods, and devices are disclosed for securing structures. One fastener includes a threaded body and a head. The head includes a rounded axial protrusion having a first radial diameter, and a noncircular radial portion for securing the fastener. The noncircular radial portion has a second radial diameter greater than the first radial diameter. The noncircular radial portion is positioned between the threaded body and the rounded axial protrusion.

Abstract: An electronic communications device 102 can be provided with one or more different electronic connectors 104 and 106 for accepting varying data cards 108 or 110. A slot 138 or 140 in the electronic communications device can receive the data cards. The connector 106 can comprise of a push-push connector 168, a push-pull connector 170 or an elongated card access tray 182. The versatile single connector can have a first data card-receiving cavity 142 for receiving a data card 108, such as a nano-SIM 4th form-factor (4FF) card, and a second data card-receiving cavity 144 for receiving a data card 110, such as a microSD (uSD) card. The versatile single connector can have portions of the cavities 142 and 144 overlapping each other to provide a common minimal connector footprint 150 comprising of a single shared data card opening 138 or 140 for receiving, accepting, connecting and detecting only one of the data cards at a time in the device.