Black convex cap for 2.75 in. 2-way aluminum fence posts

MaterialAluminum 6063-T6

FinishAAMA 2604 Super-Durable Powder Coating

ColorBlack

Fits2.75 2-way posts

Aluminum systems

2.75 2-way Post Convex Cap - Black

Black post cap: A domed, press-fit cap for 2.75 2-way posts in black 6063-T6 aluminum with AAMA 2604 powder coating that closes the post top and gives a rounded finish.

Aluminum 6063-T6
AAMA 2604 Super-Durable Powder Coating
Black

$11.74

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Factory direct from Aluglobus Aluminum Systems
Nationwide shipping across the U.S.
Project support for homeowners and trade pros

MaterialAluminum 6063-T6

FinishAAMA 2604 Super-Durable Powder Coating

ColorBlack

Fits2.75 2-way posts

4.9 ★100+ Google reviews

1,000+Active contractors nationwide

Matchedto Aluglobus systems

Factory directSold as listed

Get the Highlights

Posts, slats and accessories that work as one system.

Black, white, bronze or woodgrain.

AAMA 2604 powder coat over a 7-stage pretreatment.

Built for long, straight runs.

Factory direct, shipped nationwide.

2.75 2-way post convex capBlack powder coatAluminumSold as listedShips nationwideExpert supportFactory direct2.75 2-way post convex capBlack powder coatAluminumSold as listedShips nationwideExpert supportFactory direct

Product specs

2.75 2-way post cap specifications

This press-fit aluminum post cap is made for true 2.75″ (2-3/4″) square aluminum posts and covers the open top of the post to keep out rain, debris and insects. It has a powder-coated finish and installs without screws.

2.75″ 2-way post profilePost cross-section with exact dimensions. Tap to enlarge.

Compatible post2.75″ x 2.75″ (2-3/4″) square aluminum post

MaterialAluminum

FinishPowder coat

ColorBlack

Installation methodPress fit, no screws

OptionalExterior-grade construction adhesive for permanent bond

aluminum post cap

Aluminum post cap: 2.75 2-way post convex cap

Post caps seal the top of aluminum fence posts against water, dirt and insects. This press-fit aluminum post cap is made for true 2.75″ (2-3/4″) square aluminum posts and covers the open top of the post to keep out rain, debris and insects. It has a powder-coated finish and installs without screws. Factory direct from Aluglobus in Southern California, shipped nationwide.

Where it's used

What you get, and where it goes.

Included: 1 post cap
Finishing new 2.75″ aluminum fence installations
Replacing missing or damaged caps on older fence lines
Pool, patio and landscaped areas
Coastal or high-moisture sites
Hinge and latch posts at gates

How the 2-way post system works

The 2.75″ 2-way post holds slats from both sides, with caps, spacers, brackets and base plates to match.

2.75″ 2-way posts
Press caps and flat caps
Spacers for uniform gaps
Base plates for slabs and footings
L-brackets and screws

Watch the videos

See the 2-way post system

How the 2-way post holds the slats.

Real projects

Aluglobus fences, installed.

Real Aluglobus projects built with this system. Every photo is shown in full; tap to enlarge.

Inside the factory

See where your fence is actually made.

Inside the Aluglobus aluminum extrusion line, where the profiles for your fence are made. From there every piece goes through the 7-stage pretreatment line, the powder booths and the 110 ft cure oven. Factory direct, no middlemen.

6063-T6 USExtruded architectural aluminum

7 stagesArchitectural pretreatment before powder

110 ftCure oven, long enough for full-length profiles

NationwideFactory direct shipping to your site

Manufacturing warranty

No Factory Proof.
No Manufacturing Transparency.
No Warranty You Can Verify.

Know who manufactures your aluminum and who stands behind it.

U.S. company
U.S. warranty support

Powder coating warranty

No Coating Brand.
No Preparation Proof.
No Finish Warranty You Can Verify.

Know the coating manufacturer, the preparation process, and who's responsible for the finish.

Inside our U.S. machine shop

Engineered first. Manufactured in-house. Built with precision.

At Aluglobus, we don't just supply aluminum systems. We engineer and manufacture the components that make them work.

Inside our U.S. machine shop we make custom aluminum parts with CNC aluminum machining, precision laser cutting and aluminum sheet metal fabrication: engineered brackets and connection plates, specialized mounting hardware and custom components for our fences, gates and architectural aluminum systems. Making them ourselves gives us more control over quality, fit and customization.

U.S.-manufactured componentsEngineered aluminum brackets, connection plates and aluminum fence hardware, made in our own machine shop.

Precision machining of an aluminum bracket and connection plate in the Aluglobus U.S. machine shop — **Precision machining**Custom aluminum components machined for accurate system connections.

Precision laser cutting of aluminum sheet into mounting plates and brackets in the Aluglobus machine shop — **Laser-cut aluminum parts**Precision-cut brackets, mounting plates and fabricated components.

U.S.-based manufacturing facility

Our American machine shop manufactures aluminum components and custom parts for Aluglobus systems.

Engineered before manufacturing

Components start with technical design and engineering before they move into precision production.

Precision CNC machining

Custom aluminum parts are CNC-machined for consistent dimensions, accurate connections and dependable fit.

In-house laser cutting

Precision-cut aluminum sheets, mounting plates, brackets and specialized components.

Custom aluminum fabrication

Specialized brackets, connectors, mounting solutions and custom-designed parts made to your project requirements.

Quality control through direct manufacturing

More oversight of production for consistent components, accurate tolerances and reliable system compatibility.

Built for contractors and custom projects

Our fabrication supports aluminum fencing, gates, architectural applications and specialized installations.

A manufacturer behind the system

We show the process. So you know who stands behind the product.

Not just a supplier. From engineering drawings to finished aluminum components, we make the parts that make the system work.

Plan your fence

The right part for your fence.

Questions? Talk to a specialist
(888) 876-3006

The right part, first time

Matched to Aluglobus systems so it fits what you already have.

Ships nationwide

Factory-direct parts shipped across the U.S.

Real expert support

Send a photo of the part you're replacing and we'll confirm it.

Reviews

Real customers. Real reviews.

Homeowners and contractors on their Aluglobus fences and gates.

All reviews

DAYMOND JOHNCEO, Entrepreneur and Investor

MIKEHomeowner

DAVIDCustomer

4.9★★★★★Google rating, 100+ reviews

Installed Aluglobus fences

Read all reviews

Moshe Perez

See the system

How it works

How to install it.

Clean the postMake sure the top of the 2.75″ post is dry and free of dust or metal shavings.
Seat the capAlign the cap and press it straight down until it sits flush.
Add adhesive if neededIn high-wind zones, busy gate areas or public installations, add a small bead of exterior-grade construction adhesive inside the cap before seating it.
Tap gentlyIf tapping the cap into place, use a rubber mallet with light, even strikes.
Let it cureWipe any squeeze-out and allow the adhesive's full cure time before heavy use.

FAQ

Questions, answered.

Will this fit a standard 2.75″ square aluminum post?

Yes. It is engineered for true 2.75″ (2-3/4″) square aluminum posts and seats with a snug fit when the post is measured correctly.

Is the finish painted or powder-coated?

It is powder-coated, which holds color, resists UV fade and protects the aluminum from corrosion better than basic paint.

Can I use it near the coast or a pool?

Yes. Powder-coated aluminum resists salt, humidity and chemical splash.

Do I need screws to secure it?

No. A clean press fit is usually enough. For permanent security on gate posts or windy sites, use a thin bead of exterior construction adhesive inside the cap.

Will it work on wood, vinyl or steel posts?

It is designed for aluminum. Another post with a true 2.75″ square profile may be adaptable, but the best fit and longevity are on aluminum systems.

How many caps should I order?

One cap for every post in your line, including hinge and latch posts at gates.

Will this part fit my existing fence or gate?

It is made for Aluglobus systems. Send our team a photo and measurements and we will confirm the right part before you order.

What screws should I use with aluminum?

Use stainless steel fasteners with aluminum to avoid galvanic corrosion.

Still not sure? Call (888) 876-3006 or send us your project.

Full product description: 2.75 2-way Post Convex Cap – Black

2.75 2-way Post Convex Cap – Black

Specifications

Compatible post: 2.75″ x 2.75″ (2-3/4″) square aluminum post
Material: Aluminum
Finish: Powder coat
Color: Black
Installation method: Press fit, no screws
Optional: Exterior-grade construction adhesive for permanent bond

What you receive

1 post cap

Where it is used

Finishing new 2.75″ aluminum fence installations
Replacing missing or damaged caps on older fence lines
Pool, patio and landscaped areas
Coastal or high-moisture sites
Hinge and latch posts at gates

How to install

Clean the post. Make sure the top of the 2.75″ post is dry and free of dust or metal shavings.
Seat the cap. Align the cap and press it straight down until it sits flush.
Add adhesive if needed. In high-wind zones, busy gate areas or public installations, add a small bead of exterior-grade construction adhesive inside the cap before seating it.
Tap gently. If tapping the cap into place, use a rubber mallet with light, even strikes.
Let it cure. Wipe any squeeze-out and allow the adhesive’s full cure time before heavy use.

Frequently asked questions

Will this fit a standard 2.75″ square aluminum post?

Yes. It is engineered for true 2.75″ (2-3/4″) square aluminum posts and seats with a snug fit when the post is measured correctly.

Is the finish painted or powder-coated?

It is powder-coated, which holds color, resists UV fade and protects the aluminum from corrosion better than basic paint.

Can I use it near the coast or a pool?

Yes. Powder-coated aluminum resists salt, humidity and chemical splash.

Do I need screws to secure it?

No. A clean press fit is usually enough. For permanent security on gate posts or windy sites, use a thin bead of exterior construction adhesive inside the cap.

Will it work on wood, vinyl or steel posts?

It is designed for aluminum. Another post with a true 2.75″ square profile may be adaptable, but the best fit and longevity are on aluminum systems.

How many caps should I order?

One cap for every post in your line, including hinge and latch posts at gates.

Need help choosing the right part? Call (888) 876-3006 or send us your project and an Aluglobus specialist will confirm it for you.

Locations

Showrooms, wholesale and partners near you.

See our systems in person at an Aluglobus showroom, pick up from a wholesale location, or work with an authorized partner. Nationwide U.S. shipping from the factory everywhere else.

ShowroomSouthern California16721 Roscoe Blvd, North Hills, CAGet directions ↗ShowroomNorthern California4909 Auburn Blvd #1, Sacramento, CA 95841Get directions ↗

WholesaleBay AreaSan Jose, CA · address upon request

WholesaleSacramento12355 Quicksilver Dr, Rancho Cordova, CA 95742Get directions ↗WholesaleFlorida5060 N.E. 12th Ave, Oakland Park, FL 33334Get directions ↗WholesaleHawaiʻi91-226 Kauhi St #2D, Kapolei, HI 96707 · OʻahuGet directions ↗

WholesaleIndio45080 Golf Center Parkway, Suite G, Indio, CA 92201

Authorized partnerCalabasas24000 Ventura Blvd, Calabasas, CAGet directions ↗Authorized partnerSan Diego9072 Clairemont Mesa Blvd, San Diego, CA 92123Get directions ↗

Authorized partnerColoradoContact us for partner details

Project supportLos AngelesOrange CountySan DiegoBay AreaSacramentoLancasterRancho CucamongaIndioNationwide shipping

Call (888) 876-3006 All contact options

Mon to Fri, 9:00 AM to 5:00 PM

Need help finding the right part?

Send your project details or a photo of the part you're replacing, and a specialist will match it for you.

Get a free quote Contractor pricing

Watch

See it built and installed

Installation, product and factory videos from Aluglobus Aluminum Systems.

Specifications

Technical details

Check sizes, material and configuration against your project before ordering.

Fits: 2.75 2-way posts
Style: Convex press-fit (pressurized) cap
Color: Black
Material: Aluminum 6063-T6
Finish: AAMA 2604 Super-Durable Powder Coating
Sold: by piece

Product views & drawings156 images

FAQ

Questions, answered

Still deciding?

Send your measurements and photos. Our team will help you choose the right system and parts.

Request a quote

Which posts does this cap fit?

It is made for 2.75 2-way posts. Standard square posts use the flat press caps sized to each post.

Does it need screws?

No screws are listed for the convex cap; it is a press-fit cap. If you want a screw-fixed cap, choose the 2.75 2-way flat cap with screws.

What is the difference between the convex and flat cap?

The convex cap has a domed top and presses on. The flat cap has a level top and comes with a screw bush and screws.

What color is it?

Black, with AAMA 2604 super-durable powder coating.

Can I use it to replace a cap from a 2-way post kit?

It is listed in the 2-way post parts group. Confirm with our team which cap your kit generation uses before ordering a replacement.

Is this a good fence post cap?

Yes. It is part of the Aluglobus aluminum fence and gate system, so it matches our posts, slats and rails. Check the size and length listed above against your layout.

What else do people call this?

Shoppers also search for it as aluminum post caps, post caps for fence or aluminum post cap.

Ready when you are

Ready to start your project?

Order online or send your project details for a factory-direct quote.

Choose options Request a quote

Trusted by investors, architects, homeowners and contractors

Watch Plug ✔

@watchplug

"I couldn't be happier with the fence. From the moment it went up, it completely transformed my backyard. The sleek design without visible posts gives it such a modern, high-end look. It's like having a piece of art around my home. I also love that it's fire-resistant, which gives me peace of mind living in this area. Definitely worth every penny!"

Mike

Home Owner

Daymond John

CEO, Entrepreneur & Investor

DW Design & Build ✔

@dannywangdesign

"We're honored to be recommended by Danny Wang Design, a premier contractor known for exceptional outdoor living spaces. In our latest collaboration, Danny created a stunning backyard and entrusted us with the gate and fence system. We're proud to be his trusted partner for quality and reliability."

"AluGlobus was extremely helpful with my order, answering all my questions and delivering everything to Texas in perfect condition. The products were well-packed in a solid wood crate, and excellent quality. I'm so glad I found them online. Highly recommended. I'll be buying from them again. Thanks to everyone who made it happen!"

David

Customer

Service Department

Mercedes Benz Engineer

"We use Aluglobus 100% with every fence/gate job we have. As a contractor I can say they are working very hard and their product is the highest quality I can find and the best price. We're very happy working with them! Our experience working with them is always top notch."

22 July 2025

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2.75 2-way Post Convex Cap - Black

Get the Highlights

2.75 2-way post cap specifications

Aluminum post cap: 2.75 2-way post convex cap

What you get, and where it goes.

How the 2-way post system works

See the 2-way post system

Aluglobus fences, installed.

See where your fence is actually made.

No Factory Proof.No Manufacturing Transparency.No Warranty You Can Verify.

No Coating Brand.No Preparation Proof.No Finish Warranty You Can Verify.

Engineered first. Manufactured in-house. Built with precision.

We show the process. So you know who stands behind the product.

The right part for your fence.

The right part, first time

Ships nationwide

Real expert support

Real customers. Real reviews.

See the system

How to install it.

Questions, answered.

2.75 2-way Post Convex Cap – Black

Specifications

What you receive

Where it is used

How to install

Frequently asked questions

Will this fit a standard 2.75″ square aluminum post?

Is the finish painted or powder-coated?

Can I use it near the coast or a pool?

Do I need screws to secure it?

Will it work on wood, vinyl or steel posts?

How many caps should I order?

Showrooms, wholesale and partners near you.

Need help finding the right part?

See it built and installed

Technical details

2.75 2-way post fence system

Before you order

Questions, answered

Still deciding?

Ready to start your project?

Wholesale buyers get $150 OFF their order for a limited time.

FREE DIGITAL MAGAZINE

No Factory Proof.
No Manufacturing Transparency.
No Warranty You Can Verify.

No Coating Brand.
No Preparation Proof.
No Finish Warranty You Can Verify.