5554726-1 is a captive pan head screw with shielded champ, manufactured from bright zinc plated carbon steel. The fastener features a 4-40 UNC-2A thread specification with a length of 0.11 inches and a 0.015 × 45 degree maximum chamfer on the head. Key dimensional characteristics include a head diameter of 0.265 inches, a shaft diameter of 0.219 inches, and a tolerance of ±0.010 inches on critical dimensions. This screw is designed for applications requiring secure fastening with electromagnetic shielding properties, commonly used in connector assemblies and shielded electronic enclosures where both mechanical retention and EMI protection are essential.