Harting SEK Series 2.54mm Shrouded Headers with Angled Solder Pins A range of Harting SEK Headers with Right Angled pins. Harting part numbers ending in xxxxxxxx901 have long levers with 4.5 mm solder pins. Harting part numbers ending in xxxxxxxx903 have long levers with 2.9 mm solder pins. Harting part numbers ending in xxxxxxxx913 have short levers with 2.9 mm solder pins. Harting part numbers ending in xxxxxxxx923 have no levers with 2.9 mm solder pins.