Main ST Collective 50x Black Hex Trim Screws 4.2x20mm w/ Washer GM For Sale

4.2-1.41 x 20mm • 7mm Indented Hex Head • 17mm O.D. Loose Washer

Secure bumpers, fenders, and exterior panels with confidence using Main ST Collective Black Hex Head Trim Screws, engineered for OEM-style fitment and long-lasting performance in automotive body repair applications.

Main ST Collective is Main Street Eshop’s in-house brand, developed to deliver professional-grade fasteners trusted by body shops, restorers, and serious DIY builders.
🛠️ Main Street Eshop is your home for all things automotive and race, supplying quality parts for street vehicles, restorations, and performance builds.

• Brand: Main ST Collective

• Quantity: 50 trim screws

• Screw Size: 4.2-1.41 x 20mm

• Head Type: 7mm indented hex head

• Washer: 17mm O.D. loose washer

• Finish: Black, corrosion-resistant

• Material: Automotive-grade steel

• OEM Compatibility (GM):

  • 11503892

  • 11500434

  • 11502449

  • OEM-Style Hex Head Design – Clean appearance with secure torque engagement

  • 17mm Loose Washer Included – Distributes load and prevents panel damage

  • Precision 4.2 x 20mm Sizing – Ideal for bumpers, fenders, and trim panels

  • Black Corrosion-Resistant Finish – Built for exterior automotive use

  • Reliable Panel Retention – Prevents loosening from vibration

  • 50-Piece Kit – Perfect for repairs, replacements, or shop inventory

  🚗 Vehicle Compatibility (Common Applications)

  Chevrolet

  • Silverado

  • Equinox

  • Traverse

  • Malibu

  • Tahoe

  • Blazer

  GMC

  • Acadia

  • Yukon

  • Terrain

  Buick

  • Encore

  • Enclave

  • ⚠️ Always verify screw size and OEM part number prior to installation.

    🛠️ Ideal Uses

    • Bumper covers

    • Fender liners

    • Exterior trim panels

    • Underbody panels

    • General auto body repairs

    📦 What’s Included

    • (50) Main ST Collective Black Hex Head Trim Screws

    • (50) 17mm O.D. Loose Washers
      Brand new and ready to install.

    🔎 Why Choose Main ST Collective?

    ✔ OEM-style fit and finish
    ✔ Designed for real-world automotive repairs
    ✔ Trusted by professionals and DIYers
    ✔ Backed by Main Street Eshop expertise