In a sample assembly for a thermoelectric analyzer, typically TSC analyzer, a sample is fixed to an electrically-insulating substrate via an adhesive layer. The method may include continuing cutting in the radial direction to create an opening in the pipe, and attenuating a pressure wave through the opening. The sender then accesses the link, such as by clicking or tapping on the link, which launches a checkout or payment page for the sender on the payment provider site. Protective guards formed at distal ends of a pair of support legs provide improved insertion alignment for the fastener as well as protection between the fastener and metal surfaces of the vehicle.