2 Black Plastic Plugs for Square Tubing by Caplugs Package of 4

(1759 Reviews)

Price
$5.98

Quantity
(10000 available )

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249 Ratings
220
20
3
0
6
Reviews
  • jim fraley

    08-06-2025

    Caps fit perfect in my aluminum square tubing

  • Milton

    07-06-2025

    I needed these plugs for my bike rack that had lost them. I looked all over locally and even on the manufacturers site (Thule) and could not find replacement caps to prevent the water from entering into my bike rack. So I looked it up on Amazon and BOOM there they were. I ordered up a set and they fit like a glove. I just had to hammer them into place with a rubber mallet. I have a couple extra in case anymore fall out. I had them shipped to me within a week. I would recommend the seller as well.

  • Robert Don Mclaughlin

    > 3 day

    Excellent quality, Fits perfectly

  • Richard J. Malsch

    > 3 day

    Easy to use and does the job it was designed for.

  • Bella S

    > 3 day

    Item was as described and arrived quickly. Thank you!

  • Lanny

    > 3 day

    Fit perfectly.

  • Alyssa

    > 3 day

    Easy fit to our 2 inch steel legs on our diy table!

  • D ashley

    Greater than one week

    . Turns out they are great. They are excellent quality and just what I needed for the 2 square RAIL.

  • James D. Kleiser

    > 3 day

    These look nice, plug in tight, and stay there. They probably would not take direct abuse, of course - theyre just trim. I rated them 4 stars because they dont seem to make light colors. I built a frame for a tool bench and painted it a light grey color... it would have been nice to have white or grey plugs. Black looks like theres open ends. But hey, its a tool bench!

  • John

    06-06-2025

    My sister, over 70 years old, was having trouble lift the ramp on a 5 x 8, two-wheel trailer. Bought a Gorilla-lift and used these to close one end of the tubes containing the springs. Fit snugly and worked well...

Series SQR Square Plugs feature a series of externally tapered ribs designed to accommodate a wide range of tubing gauges while also satisfying the fit adjustments on tubing with inside dimensional fluctuations. The exterior ribs are High-Grade to provide a sure grip inside a tube without the unsightly plastic shavings found on many straight wall glide installations. Not subject to rust or corrosion.

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