Written by 
Introducing the versatile 4/8/12/20pcs Black Square Plastic Pipe Plugs – the perfect solution for securing, sealing, and protecting pipe ends in a wide range of applications. Designed with an adjustable screw foot pad and precision‑milled M6/M8 nut holes, these black square inserts provide a reliable, slip‑free connection that’s ideal for plumbing, HVAC, automotive, and DIY projects.
Key Highlights
- Premium black ABS plastic offers high impact resistance and UV stability.
- Square shape ensures a snug, non‑rotating fit in standard pipe openings.
- Adjustable screw foot pad allows easy height and pressure adjustments.
- Integrated M6 and M8 nut holes for quick bolt‑on installation without additional hardware.
- Blanking end design prevents debris ingress and protects pipe interiors.
- Available in packs of 4, 8, 12, or 20 – choose the quantity that fits your project.
- Easy to install with a simple twist‑in action; no drilling or welding required.
Why Choose Our Black Square Pipe Plugs?
These pipe plugs combine durability with convenience. The robust ABS construction resists cracking under pressure, while the adjustable foot pad lets you fine‑tune the seal for uneven surfaces. The built‑in M6/M8 nut holes eliminate the need for extra fittings, saving you time and reducing part inventory.
Ideal Applications
- Plumbing and water‑line terminations
- HVAC duct sealing and support
- Automotive exhaust and fluid pipe protection
- Industrial machinery and equipment maintenance
- DIY home improvement projects
Technical Specifications
- Material: High‑impact ABS plastic (black)
- Shape: Square, 20 mm × 20 mm (standard size)
- Thread Compatibility: M6 and M8 nut holes
- Temperature Range: -20 °C to +80 °C
- Package Options: 4, 8, 12, or 20 pieces per pack
Installation Tips
1. Insert the plug into the pipe end until it sits flush.
2. Align the screw foot pad with the desired surface.
3. Tighten the screw to adjust height and secure the plug.
4. Use an M6 or M8 bolt through the pre‑drilled nut hole for added stability if needed.
Upgrade your pipe‑working toolkit with these reliable, adjustable black square plastic pipe plugs – the smart choice for a clean, professional finish every time.
Price: Original price was: $ 3.91.$ 1.92Current price is: $ 1.92.