The Product is an Indented Hex Washer Head Tapping Screw With a Phosphate Coating. It is #14 in Size and Has a Length of 3/4". The Screw Has a 1/2" Washer Head Outer Diameter and a 3/8" Hex. It Serves as a Replacement for Ford Part Number 55914-s2 and is Compatible With Various Ford Vehicles From Different Years and Models. The Applicable Vehicles Range From the 1980s to the 1990s and Include Ford Models Such as Aerostar, E-150, E-250, E-350/e-350 Super Duty, Escort, Fairmont, Festiva, Granada, Ltd, Mustang, Pinto, Probe, Taurus, Tempo, Thunderbird, as Well as Lincoln Continental, Mark Vi, Mark Vii, Town Car, and Mercury Models Like Bobcat, Capri, Cougar, Grand Marquis, Marquis, Monarch, Sable, Topaz, Tracer, and Zephyr. The Screw is Designed for Specific Engine Types and Transmission Options in These Vehicles.