SKU: 57989812445

Boltmaster 1 in. D x 4 ft. L Square Aluminum Tube

Sale price$17.09 Regular price$18.99
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

Boltmaster 1 in. D x 4 ft. L Square Aluminum Tube1" x 4' Square Aluminum Tube Durable square aluminum tube ideal for structural projects, braces, and custom frames. Mill finish aluminum resists corrosion while staying lightweight for easy handling and fabrication. Key Features: Corrosion Resistant Aluminum: Mill finish aluminum stands up to moisture and outdoor use Lightweight Strength: Provides rigid support without the weight of steel Versatile Applications: Perfect for frames, supports, railings,

1" x 4' Square Aluminum Tube

Durable square aluminum tube ideal for structural projects, braces, and custom frames. Mill-finish aluminum resists corrosion while staying lightweight for easy handling and fabrication.


Key Features:

  • Corrosion-Resistant Aluminum: Mill-finish aluminum stands up to moisture and outdoor use
  • Lightweight Strength: Provides rigid support without the weight of steel
  • Versatile Applications: Perfect for frames, supports, railings, and DIY projects
  • Easy to Cut and Drill: Works with standard metalworking tools for clean fabrication
  • Clean Square Profile: 1-inch diameter with 4-foot length fits common build requirements

Specifications Table:

Specification Details
Material Aluminum
Shape Square
Color/Finish Mill, Silver
Diameter 1 in.
Length 4 ft.
Packaging Type Bulk
Number in Package 1
Application Variety of home and commercial applications
Brand Name (web) SteelWorks Boltmaster
Store SKU 5118559

Frequently Asked Questions (FAQ):

Q: Can this aluminum tube be used outdoors?
A: Yes, aluminum is naturally corrosion-resistant and suitable for outdoor projects.


Q: Is the tube solid or hollow?
A: It is a square hollow tube.


Q: What finish does it have?
A: Mill finish, ready for painting or anodizing if desired.


Q: Can I cut it with common tools?
A: Yes, use a hacksaw or metal-cutting saw; deburr edges after cutting.


Q: Is it safe to weld?
A: Aluminum can be welded with proper equipment and technique; verify alloy compatibility.


Sleek Structural Simplicity

This square aluminum tube brings crisp geometry and a refined industrial note to any space. Its mill finish gleams with a quiet sophistication, perfect for custom shelving frames or modern handrail accents. Pair it with warm woods or matte black hardware to create striking contrast. A staple for elevated, luxe DIY builds, it’s the backbone of bespoke, clean-lined design.


Build with confidence—add this corrosion-resistant aluminum tube to your project and elevate your design with durable, modern structure.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 57989812445

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BB
Chelsea, US
★★★★★ 5
Worth it.
Size: Small, Color: Black (001)/White
Living in North Dakota, staying warm is invaluable. UnderArmour Cold Gear is the only base layer the provides warmth, KEEPS warmth, and protects from the unforgiving wind. Every winter I go on the hunt for thermals, layering options and I always find others to be saggy or incredibly tight, either way, once I begin shoveling or snowblowering, and sweating, other products become soaked, sticking to skin, unbreathable and quickly your sweat stuck to your body under layers in now creating a cold,chill, freeze to your body, and on a -10F day, it can become a dangerous situation. I honestly was hesitant to purchase UnderArmour, I felt it was too hyped up or paying for a name. BUT IT IS NOT. UnderArmour isn't a name, it is a company that has made the highest quality base layer, warmth, breathable and it really wicks sweat away; I may not know how it does it, but it works! For sizing, I ordered a small in the women's longsleeve/turtleneck black coldgear. I'm 5ft and roughly 110lbs. I like the fit, it is meant to fit your body. I probably could wear an extra small, but I like the sleeve length in the small and it fits very well. Stay warm folks!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 6, 2023
A
Verified Purchase
Amanda
Charlottesville, US
★★★★★ 5
Great cold gear
Size: Large, Color: White (100)/Black
Warm, very comfortable. I wear these all winter. The neck can be a little tight and the cut is definitely fitting. Its got thin like fleece on the inside that keeps you warm.
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Reviewed in the United States on November 3, 2025
K
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Katia
Dallas, US
★★★★★ 4
Tight but stays in place, comfy and keeps you warm
Size: Medium, Color: Charcoal Light Heather (019)/Black
I liked this shirt because it keeps me warm when I'm outside even at negative temperatures, I can work out comfortably in it and the sweat dries out soon; also, the interior of the shirt is made of a very comfortable material. I don't like that this is very tight, cool if you want to use it under your usual sports clothes but if you want to use it as is I would suggest going up a size. I use this shirt almost every day to work out during winter time, I've washed them several times and they still feel as comfortable as the first day.
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Reviewed in the United States on January 5, 2022
D
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Drea
Charlottesville, US
★★★★★ 5
Perfect for running!
Size: Small, Color: Black (001)/White
None of my running clothes make me feel as sexy as this underarmor does. It is so soft on the inside, which is an upgrade from their old version because I found one at the thrift store that is really scratchy. It has been through a cold wash and the dryer multiple times at this point and it is still holding up. The size is true. The material thickness is perfect for me between 45-35° F. And again with layers between 15-10° F. But I look forward more to my runs that I get to wear my underarmor. Nothing makes me feel more confident on the trail. And I love love love the turtleneck. I got all black because that is my favorite color to wear when I run and it looks perfect. It is a true black.
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Reviewed in the United States on March 3, 2026
E
Verified Purchase
Erica Frangiamore
West Palm Beach, US
★★★★★ 5
Great product
Size: X-Small, Color: White (100)/Black
Great fit and very warm.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 31, 2025

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