The present disclosure provides a system and method for Session Initiation Protocol user agent identification and efficient binding. The device is designed for a relatively low-cost, small size which may be used by payloads of variable weights. A second fastener connects the first and second clamp members. As part of the process in which the configuration data stream is used to program the programmable IC with the user design, a function is performed on the two identifiers, producing a key specific to the programmable ICnon-volatile memory device combination. The weldment can also accommodate larger than conventional weld flaws while maintaining sufficient strength, tearing resistance, and fracture toughness under high axial loading.