5229996-2 is a captive pan head screw designed for secure fastening applications. This screw is manufactured from zinc plated steel and features a 4-40 UNC-2A thread with a maximum chamfer of 0.015 x 45 degrees. The screw has dimensions of DIM A: 0.425 inches and DIM B: 0.110 inches with a tolerance of ±0.010 inches. Captive screws are commonly used in electronic enclosures and equipment panels where preventing screw loss during assembly or maintenance is essential.