This break-away header can be snapped along its length between any pair of pins to created any length header. It is configured 2-pins wide by 40-pairs long. Manufacturer: AMP. Manufacturer's Part Number: 4-103322-0.
This break-away header can be snapped between any pair of pins to created any length header. The board side pin is longer than those of standard PCB headers so they work well in solderless breadboards. Manufacturer: 3M. Manufacturer's Part Number: 929834-02-36.
PCB male header with friction locking tab. This header is commonly used as the PIC ICSP programming header. Manufacturer: MOLEX. Manufacturer's Part Number: 22-23-2061.