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5/8 INCH SQUARE PLASTIC CAP
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5/8 INCH SQUARE PLASTIC CAP

In stock
SKU
HWOSMAXP062
$0.38
Bulk 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%
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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.

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5/8 Inch Square Plastic Cap

Provide a clean, finished look and protect your 5/8" square tubing with our industrial-grade plastic caps. These durable caps press-fit securely to prevent the ingress of dirt and moisture while safeguarding against sharp metal edges, making them an essential finishing component for fabrication projects.

  • High-Impact LDPE Plastic
  • For 5/8" Outer Dimension Square Tubing
  • Finishing, Protection, Safety
  • Weather & UV Resistant
Overview | Specifications | Applications | Finish Options | How to Measure | Order Checklist

Our 5/8 Inch Square Plastic Caps are manufactured from high-quality, resilient Low-Density Polyethylene (LDPE). This material is selected for its excellent durability, impact resistance, and flexibility, which allows for a snug, secure fit without the need for adhesives. The plastic is formulated to resist weathering, UV degradation, and common industrial chemicals, ensuring a long service life for both indoor and outdoor applications. Its non-marking properties protect surfaces and provide a professional, finished appearance on any project.

These versatile caps are a staple for metal fabricators, MRO professionals, and manufacturers. They are primarily used to cap the ends of 5/8" square metal tubing used in fencing, gates, railings, and equipment frames. Beyond aesthetics, they provide a crucial safety function by covering sharp, cut edges. They also prevent debris, insects, and water from accumulating inside the tubing, which can lead to internal corrosion over time. They are an inexpensive and effective solution for completing projects professionally and safely.

Specifications

  • Material: Industrial-Grade Plastic (Low-Density Polyethylene - LDPE)
  • Standards: Meets common industrial dimensional tolerances for fit
  • Strength/Tensile: High-Impact & Abrasion Resistant
  • Dimensions: Designed to fit 5/8" x 5/8" OD Square Tubing
  • Finish: Matte Black
  • Certifications: N/A

Applications

  • Fencing & Railing: Capping posts and pickets for safety and to prevent water ingress.
  • Equipment Manufacturing: Finishing the ends of machine frames, stands, and supports.
  • Furniture Fabrication: Providing a non-scratching foot for chairs, tables, and racks made from square tubing.
  • Retail & Display: Capping the ends of display racks and fixtures for a professional look.

Target Users

Ideal for metal fabricators, fence contractors, furniture makers, and MRO teams who require a durable and aesthetic finishing solution for projects involving 5/8" square tubing.

Finish Options

These caps are typically available in a standard matte black finish, which is UV-stabilized for outdoor use and complements most metal finishes. Contact our Los Angeles industrial supply team for information on custom colors for large volume orders.

How to Measure

To ensure a proper fit, measure the outer dimension (OD) of your square tube across its flat sides. These caps are designed for a 5/8 inch by 5/8 inch OD profile. The cap's internal ribs are designed to securely grip a range of common tube wall thicknesses.

Example: If your tubing measures 0.625" (5/8") across its flat sides, this cap is the correct size.

Order Checklist

  • Product name and required dimensions (e.g., 5/8" Square)
  • Grade/material specification and quantity
  • Cutting instructions (if applicable for tubing)
  • Surface finish requirements (Standard Black)
  • Certifications required (N/A for this item)
  • Special handling or delivery requirements

Quick Facts

Product
5/8 Inch Square Plastic Cap
Material
Low-Density Polyethylene (LDPE)
Standards
Industrial Dimensional Fit
Key Properties
Durable, Weather-Resistant, Press-Fit Design, Protective Finishing
Primary Applications
Fencing, Equipment Frames, Furniture, Railings
Location
Los Angeles warehouse - Same-day pickup available
Request a Quote Ask an Expert

Available Sizes

Our warehouse stock in Los Angeles includes a comprehensive range of square plastic caps for common tubing sizes, including 1/2", 5/8", 3/4", 1", 1.5", and 2". Bulk quantities are available for immediate pickup.

Custom sizes and cutting services are available for tubing.

Contact for Sizing
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