Amazon.com: Chanzon Round Pin Header Strip for Arduino Gpio 4 pin x 50pcs Male Headers Pins Straight Single Row Gold Plated Pitch 2.54mm 0.1 inch Breakaway for PCB Connector Raspberry pi Machine
PCB Pins and Receptacles Online Store | Future Electronics
Proto Advantage - 0.1" 40 pin Machine Pin Header Pair for PCB Edge to DIP Conversion
Mill-Max announces press-fit PCB pins for plated-through holes
Low Profile, Removable Carriers for Male PCB Pins and Terminals | Mill-Max Mfg. Corp.