A push pin fastener is a small, usually nylon, clip that holds non-structural automotive pieces in place without screws or bolts. You insert it into a pre-drilled hole and press the center to expand the legs, creating a snug hold.

• Common uses: Bumper covers, splash shields, fender liners, underbody panels, and interior trim.
• How it works: The center pin locks the shank open to grip the panel and hole.
• Typical sizes: Hole diameters often range from 6 mm to 11 mm.
• Material: Often nylon for durability and corrosion resistance.

They’re designed for quick, tool-light installs and can sometimes be reused, though fit and longevity can vary with vehicle, conditions, and clip style.

You’ll see these fasteners listed under several names, and they often refer to the same style of clip.

• Common terms: Push pin fasteners, push-type rivets, trim panel retainers, body clips, bumper clips, fender clips, plastic rivets, and “Christmas tree” clips.
• Why it varies: Different manufacturers and vehicles use different naming conventions for similar designs.
• Shopping tip: Focus on the hole size (e.g., 6–11 mm), stem length, and head diameter instead of the name alone.

Some sets bundle multiple popular sizes so you can match what you need. Checking measurements and comparing to an original clip can help you find the right fit across naming variations.

A push pin clip holds lightweight automotive panels and trim in place so things don’t rattle or shift during driving.

• Typical jobs: Securing wheel well liners, splash shields, undertrays, bumper covers, and interior door panels.
• Benefits: Quick installation, no threads to rust, and a clean, low-profile head.
• Limitations: They’re intended for non-structural retention, not heavy loads or critical mounting points.

When servicing a panel, you can remove them with a trim tool and replace as needed. Reuse may be possible with some designs, though grip strength can change with age and wear, so checking fit after reinstallation is a good idea.

Most push pin clips install by hand—press the shank into the hole and then push the center to lock. For removal and cleaner installs, a few tools can help.

• Helpful tools: Trim clip remover, panel popper, or a wide plastic pry tool to lift the head without scratching paint.
• Extra control: Needle-nose pliers can help pull the center pin on some designs.
• Tip: Work under the head, not the panel, to reduce damage.

When removing older clips, easing them out with a dedicated remover can reduce breakage. Consider eye protection—some retained panels can release tension suddenly, and small parts may spring free.

Match the clip to your vehicle’s hole and panel dimensions.

1. Measure the hole diameter: Common sizes include 6 mm, 7 mm, 8 mm, 9.5–10 mm, and 11 mm.
2. Check panel thickness: The stem length should accommodate the stack-up of panels.
3. Note head diameter: A larger head can cover wider slots or worn holes.
4. Compare to the old clip: If available, match shank style and length.
5. Test fit one first: It should seat snugly without forcing.

If you’re unsure, an assortment with multiple popular sizes can provide options. Fit can vary by model and clip style, so verifying measurements before a full install is a practical approach.