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$0.19 As low as $0.05Bulk Pricing:- Buy 50 or more $0.14 Save 26%
- Buy 100 or more $0.09 Save 53%
- Buy 200 or more $0.06 Save 68%
- Buy 450 or more $0.05 Save 74%
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$0.49 As low as $0.11Bulk Pricing:- Buy 20 or more $0.34 Save 31%
- Buy 100 or more $0.29 Save 41%
- Buy 200 or more $0.12 Save 76%
- Buy 450 or more $0.11 Save 78%
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$0.29 As low as $0.10Bulk Pricing:- Buy 50 or more $0.24 Save 17%
- Buy 100 or more $0.19 Save 34%
- Buy 200 or more $0.11 Save 62%
- Buy 450 or more $0.10 Save 66%
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$0.59 As low as $0.12Bulk Pricing:- Buy 20 or more $0.39 Save 34%
- Buy 100 or more $0.34 Save 42%
- Buy 200 or more $0.13 Save 78%
- Buy 450 or more $0.12 Save 80%
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
1-1/4 Inch Square Plastic Cap$0.79 As low as $0.16Bulk Pricing:- Buy 20 or more $0.54 Save 32%
- Buy 50 or more $0.49 Save 38%
- Buy 100 or more $0.39 Save 51%
- Buy 200 or more $0.17 Save 78%
- Buy 450 or more $0.16 Save 80%
The 1-1/4 Inch Square Plastic Cap provides a clean, finished look for square tubing applications. Made from durable, weather-resistant black plastic, it protects against sharp edges and internal debris. This cap offers a secure press-fit for reliability in fencing, furniture, and equipment fabrication. Learn More
1-1/2 Inch Square Plastic Cap$0.99 As low as $0.18Bulk Pricing:- Buy 20 or more $0.49 Save 51%
- Buy 200 or more $0.20 Save 80%
- Buy 450 or more $0.18 Save 82%
Durable 1-1/2 inch square plastic cap designed for a secure fit on square tubing. Made from high-quality, weather-resistant Low-Density Polyethylene (LDPE), this cap provides a clean, finished appearance and protects against debris. Learn More
2 Inches Square Plastic Cap$0.49 As low as $0.31Bulk Pricing:- Buy 100 or more $0.39 Save 20%
- Buy 200 or more $0.36 Save 27%
- Buy 450 or more $0.31 Save 37%
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
1-1/2 Inch Post Ball Cap$2.99 As low as $1.69Bulk Pricing:- Buy 15 or more $2.98 Save 0%
- Buy 20 or more $2.69 Save 10%
- Buy 50 or more $1.99 Save 33%
- Buy 100 or more $1.69 Save 43%
The 1-1/2 Inch Post Ball Cap is a high-quality ornamental hardware component designed for fencing and architectural applications. Fabricated from durable Class 25-30 gray iron or A356 aluminum, it provides a classic, finished look to any metal post. This decorative cap is engineered for a precise fit on 1-1/2 inch square or round tubing. Learn More
2 Inch Post Ball Cap$3.99 As low as $2.49Bulk Pricing:- Buy 8 or more $3.25 Save 19%
- Buy 15 or more $2.98 Save 25%
- Buy 25 or more $2.70 Save 32%
- Buy 100 or more $2.49 Save 38%
This 2 Inch Post Ball Cap provides a durable, decorative finish for square or round tubing. Fabricated from Class 25-30 gray cast iron, it is designed for welding onto fences, gates, and handrails, offering a classic architectural look. Learn More
2-1/2 Inch Post Ball Cap$5.99 As low as $4.99Bulk Pricing:- Buy 50 or more $5.49 Save 8%
- Buy 100 or more $4.99 Save 17%
This 2-1/2 Inch Post Ball Cap is a high-quality ornamental component crafted from durable Class 25-30 gray iron. It provides a classic, protective finish for fence posts, gates, and handrails. Engineered for long-lasting performance in architectural and fabrication projects. Learn More
3 Inch Post Ball Cap$7.99 As low as $5.49Bulk Pricing:- Buy 20 or more $6.99 Save 13%
- Buy 50 or more $5.99 Save 25%
- Buy 100 or more $5.49 Save 31%
The 3 Inch Post Ball Cap is a durable, decorative finial for fence posts and railings. Manufactured from high-strength Class 25-30 gray iron, it provides a classic architectural finish and protects the post top from weather. Ideal for both new fabrication and MRO projects. Learn More
4 Inch Post Ball Cap$12.99 As low as $8.49Bulk Pricing:- Buy 7 or more $12.73 Save 2%
- Buy 15 or more $12.14 Save 7%
- Buy 20 or more $9.99 Save 23%
- Buy 50 or more $8.99 Save 31%
- Buy 100 or more $8.49 Save 35%
The 4 Inch Post Ball Cap is a decorative finial designed for fence posts and railings. Crafted from durable Class 25-30 gray iron, it provides a classic architectural finish for ornamental and security fencing projects. This cap is designed to fit standard 4-inch square or round posts. Learn More
2 Inch Post Newell Caps$1.80Durable 2 Inch Post Newell Caps designed for finishing square tubing posts. Fabricated from high-grade Class 25-30 cast iron, these caps provide a protective, decorative finish for fences, gates, and railings. Ideal for architectural and ornamental metalwork. Learn More
1 Sq Pressed Steel Cap$0.99 As low as $0.36Bulk Pricing:- Buy 20 or more $0.49 Save 51%
- Buy 50 or more $0.44 Save 56%
- Buy 100 or more $0.39 Save 61%
- Buy 450 or more $0.36 Save 64%
The 1 Sq Pressed Steel Cap is a durable, weldable finishing component for 1-inch square tubing. Made from low-carbon mild steel, it provides a clean, protective end for fence posts, railings, and metal furniture. Designed for easy integration in fabrication projects. Learn More
1-1/2 Sq Pressed Steel Cap$1.99 As low as $0.39Bulk Pricing:- Buy 20 or more $0.54 Save 73%
- Buy 50 or more $0.49 Save 75%
- Buy 100 or more $0.39 Save 80%
This 1-1/2" Sq Pressed Steel Cap provides a clean, protective finish for square tubing. Made from durable, weldable pressed steel, it is designed for ornamental fencing, gates, and railing projects. Meets industry standards for dimensional accuracy and fit. Learn More
2-1/2 Sq Pressed Steel Cap$2.42 As low as $1.14Bulk Pricing:- Buy 12 or more $1.84 Save 24%
- Buy 25 or more $1.67 Save 31%
- Buy 50 or more $1.49 Save 38%
- Buy 100 or more $1.32 Save 45%
- Buy 300 or more $1.14 Save 53%
This 2-1/2" Square Pressed Steel Cap provides a durable, clean finish for square tubing. Made from commercial-grade pressed steel, it is ideal for ornamental fencing, handrails, and gates. The cap is supplied with a raw, weldable finish for easy fabrication. Learn More
1-1/4 Sq Pressed Steel Cap$0.76 As low as $0.36Bulk Pricing:- Buy 20 or more $0.58 Save 24%
- Buy 50 or more $0.53 Save 30%
- Buy 100 or more $0.47 Save 38%
- Buy 200 or more $0.41 Save 46%
- Buy 450 or more $0.36 Save 53%
This 1-1/4" square pressed steel cap provides a clean, finished look for fence posts and railings. Made from durable, weldable mild steel, it protects post interiors from debris and weather. Ideal for ornamental and security fencing applications. Learn More
4 Sq Pressed Steel Cap$3.99 As low as $1.63Bulk Pricing:- Buy 10 or more $2.47 Save 38%
- Buy 40 or more $2.05 Save 49%
- Buy 50 or more $1.89 Save 53%
- Buy 80 or more $1.85 Save 54%
- Buy 100 or more $1.69 Save 58%
- Buy 200 or more $1.63 Save 59%
The 4 Sq Pressed Steel Cap provides a durable, clean finish for square tubing and fence posts. Fabricated from high-quality pressed steel for excellent weldability and longevity. Ideal for ornamental ironwork and security fencing projects. Learn More
2 Sq Pressed Steel Cap$1.99 As low as $0.44Bulk Pricing:- Buy 12 or more $1.54 Save 23%
- Buy 20 or more $0.64 Save 68%
- Buy 50 or more $0.54 Save 73%
- Buy 100 or more $0.44 Save 78%
This 2" Square Pressed Steel Cap provides a clean, protective finish for square tubing and fence posts. Fabricated from durable, weldable mild steel, it prevents water ingress and adds a professional aesthetic to any ornamental ironwork project. Learn More