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If you're dealing with scratched hardwood floors from metal chair legs, exposed screw threads that snag on clothing, or open tube ends collecting dust and moisture, these silicone rubber end caps solve the problem cleanly. Designed for DIYers, furniture owners, and hardware professionals alike, they slip over round ends and grip firmly without adhesive.
Available in inner diameters from 3mm to 80mm (approximately 0.12 in to 3.15 in) and in black or white, each cap is made from flexible, heat-resistant silicone rubber rated from -40°C to +250°C (-40°F to 482°F). Order in quantities of 1, 2, 5, 20, or 50 pieces depending on your project scale.
Common applications include silicone chair leg floor protectors, rubber screw thread caps, tube end plugs for furniture and industrial piping, non-slip feet for exercise equipment, and protective covers for walker and crutch tips.
| Product Name | Silicone Rubber End Caps / Tube End Plugs / Protective Covers |
|---|---|
| Material | Silicone rubber |
| Available Inner Diameters | 3mm to 80mm (select from variant options) |
| Colors Available | Black, White |
| Pack Quantities | 1, 2, 5, 20, or 50 pieces |
| Temperature Range | -40°C to +250°C (-40°F to 482°F) |
| Key Properties | High elasticity, wear resistant, aging resistant, electrical insulation, anti-slip, sealing |
| Measurement System | Metric |
| Typical Applications | Chair legs, furniture feet, screw/bolt ends, tube ends, pipe plugs, walker tips, exercise equipment, electronics |
Protect hardwood, tile, and laminate floors from metal chair and table legs. Reduce furniture noise and add a finished look to exposed leg ends.
Cap exposed bolt threads, threaded rods, and sharp screw ends on projects, shelving, and workshop equipment to prevent injuries and thread damage.
Seal open pipe ends, protect tube openings from dust and moisture, and add non-slip feet to equipment stands and industrial fixtures.
Replace worn tips on walkers, crutches, and canes. Silicone provides reliable non-slip grip on smooth indoor and outdoor surfaces.
Measure the outer diameter of the object you want to cover using a caliper or ruler. Choose a cap with an inner diameter that is slightly smaller (typically 0.5–1mm) than your measurement — silicone stretches for a snug fit. If you are between sizes, size down for a tighter grip. For example, a 19mm leg generally fits well with an 18mm or 19mm cap.
Yes — silicone rubber has a high friction coefficient and grips firmly once pushed on. They stay in place during normal use and furniture rearrangement. For permanent installation, a small drop of silicone adhesive can be added. Most users find the friction fit sufficient for years of regular use.
Yes — silicone rubber is rated up to 250°C (482°F), making it suitable for barbecue grill legs, engine bay hardware, and other high-heat applications. Avoid direct contact with open flames. They also handle freezing temperatures down to -40°C, so outdoor use in cold climates is fine.
These are industrial-grade silicone rubber, not certified food-grade. For kitchen furniture applications (e.g., table or stool legs), they are safe at room temperature. They are not recommended for direct food contact or use as bottle stoppers. For food-contact applications, look for FDA-certified silicone products.
Silicone rubber is an electrical insulator suitable for covering low-voltage wire ends or terminal screws (e.g., speaker terminals, automotive electronics). For high-voltage mains applications (110V+), use certified insulating caps. For general DIY low-voltage projects, these work well.
There is no difference in physical properties — both colors have the same temperature range, elasticity, and durability. Black may offer slightly better UV resistance for outdoor use; white blends better with light-colored furniture. Choose based on your aesthetic preference.
These caps are designed for round cross-sections. Silicone has some flexibility and may stretch over slightly oval shapes, but they are not recommended for square or rectangular legs. For non-round profiles, look for square or rectangular end cap options.
