8 Pcs 1-1/2\" Square Post Flange Base, Square Tube Fittings, Black for Fence Deck For Sale

Secure your square tubing projects with this 8-pack of 1-1/2\" square post flange bases. Made from durable low carbon steel with a corrosion-resistant powder-coated finish, these mounting plates provide a strong and stable foundation for railings, fences, furniture, handrails, equipment frames, and a wide range of DIY and construction projects.

• Fits 1-1/2\" × 1-1/2\" square tubing.

• Provides a secure mounting solution for square metal posts.

• Ideal for indoor and outdoor fabrication projects.

• Manufactured from high-quality low carbon steel for excellent strength and finish helps resist rust, corrosion, scratches, and weather exposure.

• Built for long-lasting performance in residential, commercial, and industrial applications.

• Base Plate Thickness: 1/8\" (3.2 mm)

• Post Wall Thickness: 1/16\" (1.6 mm)

• Reinforced construction provides reliable support for mounted square posts.

Features two mounting hole sizes for flexible installation:

• #12 Screws (6 mm)

• 3/8\" Bolts (10 mm)

Pre-punched holes allow for quick and convenient installation with common hardware.

Perfect Railings

• Tube Size: 1-1/2\" × 1-1/2\"

• Material: Low Carbon Steel

• Finish: Powder Coated

• Base Plate Thickness: 1/8\"

• Post Wall Thickness: 1/16\"

• Mounting Hole Sizes: #12 Screw (6 mm) & 3/8\" Bolt (10 mm)

• 8 × 1-1/2\" Square Post Flange Bases

These heavy-duty square post mounting plates provide a durable, stable, and professional solution for securing square tubing in a wide variety of construction, repair, and fabrication projects.