Details

• Brand:

  

  

• SKU:

  W704277-S438

• Positions: Left Lower, Left Rear, Left Outer, Right Lower, Right Rear, Right Outer, Lower, Lower Rear, Lower Outer, Front Lower, Front Rear, Front Outer, Rear Lower, Rear, Rear Outer
• Other Names:

  Lower Deflector Nut, Bumper Cover U-Nut, Guard Nut, Shield Nut, Air Deflector U-Nut, Fender Liner U-Nut, Lower Cover U-Nut, Side Reinforced U-Nut, Side Support U-Nut, Valance U-Nut, Bumper Cover Nut, Bumper Nut, Valance Panel U-Nut, Lower Deflector U-Nut, Reinforcement Retainer Nut, Lower Shield U-Nut, Rear Deflector Nut, Mount Bracket Nut, Grille Surround U-Nut, Mud Guard Nut, Side Reinforced Retainer Nut, Support Bracket U-Nut, Wheelhouse Liner Nut, Mount Bracket U-Nut, Bumper Cover Reinforcement Nut, Bumper Cover Support Rail Nut, Radiator Support Air Deflector Nut, Spoiler Nut, Valance Panel Nut, Deflector Nut, Outer Support Nut, Valance Nut, Emblem Nut, Lower Cover Nut, Ornament Nut, Splash Guard U-Nut, Outer Support U-Nut, Nut Spring

• Description:

  The W704277-S438 is a genuine Ford spring nut built on the HN1 base, a clip-on U-nut that gives fender liner and shield screws a threaded receiver on a panel edge. Dealer catalogs carry it under the dominant names Fender Liner Nut and Spring Nut, also described as a side-support U-nut, and note that it is included with the shield, fender liner, mount bracket, lower deflector and support bracket, in left and right lower, rear and outer positions. Documented sample applications where this exact service number is cataloged include the Ford Flex, Fusion and Mustang and the Lincoln MKT, MKX and Zephyr, along with the Mercury Milan, Montego and Sable; treat those as representative examples rather than a complete vehicle list, because Ford reuses one spring nut across many bodies and model years and does not publish a single finite fitment chart for it. A spring U-nut clips over a panel edge so its threaded section lines up with a hole, letting a liner or shield screw bite and hold without a separate captured nut, and its spring tension resists backing out. When one is sprung, corroded or missing, the screw has nothing to grab and the fender liner, shield or deflector works loose, rattles or sags. Because the suffix code denotes a specific panel-edge thickness, thread size and finish, confirm fit for your exact vehicle by VIN before ordering rather than relying on the sample applications above.

• Notes: Included with shield. Included with fender liner. Included with mount bracket. Included with lower deflector. Included with support bracket.

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