Best Hardware Plugs Under $100 (2026)
We ranked products by a value score combining user ratings, material and size variety, retention features (ribbed design), and suitability for indoor/outdoor protection
This roundup covers durable hardware plugs and end caps under $100, focused on tubing, fence-post and furniture protection. Picks were chosen by value score using product durability, material (vinyl/plastic), size range, and user ratings
Top Picks
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1
Prescott Plastics 2.5" Ribbed Plastic Hole Plugs (50 pack)
Ribbed black plastic hole plugs with round shape for tubing ends; designed to protect floors and furniture feet. Customers note easy installation and good fit on various chairs and tables
- protects floors
- easy tap-in installation
- fits varied tubing sizes
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2
Prescott Plastics 3 in Round Vinyl Plug Insert, 20 pack
3" round vinyl plug insert for 3" OD tubes, fits snugly with stretch up to 1/16". Deep 1.5" for secure fit. Helps protect floors and serve as chair glides
- 3" snap-in plug for durability
- secure 1.5" depth
- multi-purpose outdoor and indoor use
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3
Prescott Plastics 1/2 in Outer Diameter Ribbed Plastic Hole Plugs
Ribbed plastic hole plugs for 1/2" round tubing with 3/8" to 7/16" ID holes. Snap-in, long-lasting, weather resistant and suitable for furniture and outdoor projects. One customer notes easy installation with a rubber mallet
- fits 1/2" tubing with ID 3/8" to 7/16"
- easy install and durable
- weather and impact resistant
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4
Prescott Plastics 2" Ribbed Plastic Hole Plugs
2" snap-in plastic hole plugs for round tubing with 1.75"–1.94" inner hole fit. Durable, weather resistant, easy installation. One customer note mentions fit accuracy concerns regarding size
- fits 2" round tubing
- inside hole diameters 1.75"–1.94"
- outdoor and indoor use
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5
Prescott Plastics 2 3/4 in Black Plastic Hole Plugs
2 3/4" round OD hole plugs for tube ends; provides secure, snug fit with a deep profile. Customers note easy installation and durable rubber construction with good friction for grip
- fits 2 3/4" round OD
- snap-in, long-lasting
- weather and impact resistant
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6
Prescott Plastics 1.75-in Round Plastic Hole Plugs (20 Pack)
Round plastic hole plugs for round tubing and posts. Easy snap-in installation with head 1.75", suitable for fence posts, posts, and furniture hardware. Customers note easy installation and durable use on various surfaces
- 1.75" head and 1.75" outside diameter
- fits inside diameters 1.50"–1.68"
- snap-in, long-lasting protection
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7
Inflatable pipe plug for sewer testing, 8 inch
Inflatable pipe plug used for sealing and testing sewer pipes. Inflation pressure up to 2.9 PSI; made of high quality rubber. Note: ensure pipe interior is cleaned and free of burrs; manual pump required
- specified inflation pressure
- rubber construction
- suitable for sewer pipe testing
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8
Water shut off airbag for drainage pipes, 6 inch closed water test airbag
Inflatable pipe plug used to quickly block water in drainage and sewage pipes during tests or repairs. Provides temporary water containment with a closed water test capability. Customer mentions versatile use in drainage and sewage contexts
- inflatable pipe plug
- closed water test capability
- rapid water shutoff