Post Caps and Tubing Plugs
Protect and finish your metalwork with our industrial post caps and tubing plugs. Fabricated from high-quality Class 25-30 iron and A356 aluminum alloy, these components provide a durable, professional finish for fencing, handrails, and architectural projects.
1/2 INCH SQUARE PLASTIC CAP$0.25 As low as $0.18Bulk Pricing:- Buy 20 or more $0.22 Save 12%
- Buy 50 or more $0.20 Save 20%
- Buy 100 or more $0.18 Save 28%
This 1/2 Inch Square Plastic Cap is made from durable, weather-resistant Low-Density Polyethylene (LDPE). It provides a secure, friction-fit for finishing square tubing, protecting against sharp edges and internal contamination in fabrication and MRO applications. Learn More
3/4 INCH SQUARE PLASTIC CAP$0.64 As low as $0.46Bulk Pricing:- Buy 20 or more $0.57 Save 11%
- Buy 50 or more $0.52 Save 19%
- Buy 100 or more $0.46 Save 28%
This 3/4 Inch Square Plastic Cap is designed for a secure fit on square tubing, providing a clean finish and protection. Made from durable, weather-resistant LDPE plastic, it is ideal for finishing fences, railings, and furniture. It meets general industrial quality standards for non-structural applications. Learn More
5/8 INCH SQUARE PLASTIC CAP$0.38 As low as $0.27Bulk Pricing:- Buy 20 or more $0.34 Save 11%
- Buy 50 or more $0.31 Save 18%
- Buy 100 or more $0.27 Save 29%
Durable 5/8 Inch Square Plastic Caps designed for a secure, press-fit on square tubing. Made from industrial-grade, weather-resistant plastic, these caps provide a clean, finished appearance while protecting against dirt, moisture, and sharp edges. Ideal for fencing, furniture, and equipment fabrication. Learn More
1 INCH SQUARE PLASTIC CAP$0.77 As low as $0.56Bulk Pricing:- Buy 20 or more $0.69 Save 10%
- Buy 50 or more $0.62 Save 19%
- Buy 100 or more $0.56 Save 27%
This 1 Inch Square Plastic Cap provides a durable, finished look for square tubing. Made from UV-resistant LDPE plastic, it protects against moisture and debris. Ideal for fencing, furniture, and fabrication projects. Learn More
2 INCHES SQUARE PLASTIC CAP$0.64 As low as $0.46Bulk Pricing:- Buy 20 or more $0.57 Save 11%
- Buy 50 or more $0.52 Save 19%
- Buy 100 or more $0.46 Save 28%
Our 2 Inch Square Plastic Cap is an industrial-grade finishing component made from durable, low-density polyethylene (LDPE). It provides a secure, press-fit closure for square tubing, protecting against moisture and debris while offering a clean, professional appearance. Learn More