3.5-Inch Round 6061 Aluminum Backing Plate – 3-Inch Center Cutout, 1/4-Inch Thick, Tri-Mount Setup

Description

Heavy-Duty Round Deck Reinforcement Plate

Precision-machined from Marine Grade 6061-T6 aluminum, this 3.5″ Round Backing Plate is engineered to distribute stress for deck-mounted hardware. Featuring a 3″ center pass-through and a pre-drilled 3-hole countersunk pattern, it is the ideal professional solution for installing pop-up cleats, rod holders, and antenna bases.

Ideal for installing:

• Deck Hardware: Pop-up cleats, fuel fills, and heavy-duty rod holders.
• Rigging: Antenna mounts, outrigger bases, and fighting chairs.
• Access Points: Reinforcement for screw-in deck plates and inspection ports.

Specifications:

• Material: Marine Grade 6061-T6 Aluminum
• Outer Diameter (OD): 3.5″
• Center Hole (ID): 3″
• Thickness: 1/4” (0.25″)
• Mounting Pattern: 3-Hole Countersunk (CS) layout for flush installation.
• Finish: Fabrication Ready (Mill Finish) – Ready for installation or powder coating.

Trust your rigging to Welding World, Inc. Precision-cut aluminum components for professional marine fabrication.

Shipping: 1-2 work days.

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