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8pcs 1.4mm Carbon Fiber Square Rods 1.4x1.4x300mm,Solid Inside Carbon Square Tube(pultrusion) 1.4mm Length 300mm,1.4/2/3/4/6mm Available

Based on 71 reviews
Condition: New
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$8.94

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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Oct 29
Order within 20 hours and 27 minutes

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At a glance

Condition
New
Size
1.4x1.4x300mm
Model
carbon-square-rod1.4mm
Weight
0.8 g
Color
Black
Material
carbon fiber
Shape
Square

Features 5

  • Material:100% carbon Fiber
  • Side:1.4mm; Length: 300mm
  • Weight: 0.8g/pcs
  • High strength,low weight

Description

CNcarbonfiber is a professional manufacturer and distributor of carbon fiber products. Founded in 2010, located in Shenzhen,China, we have our own production workshop and CNC machining workshop. We specializing in carbon fiber sheet and cnc precised machining, carbon fiber round tubes/square tubes, aluminum alloy processing and customized carbon fiber parts.

Specs 17

Material carbon fiber
Brand cncarbonfiber
Color Black
Shape Square
Item Diameter 1.4 millimeters
Brand Name cncarbonfiber
UPC 735279176902
Number of Items 8

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Oct 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


Amazing quality
Size: 6.0x6.0x420mm
Super strong..never had a problem with them...have bought multiple times
Reviewed in the United States on November 10, 2024 by Nigelgiesbrecht

Fit perfectly in routed 1/4" slot under fret board t board
Size: 6.0x6.0x420mm
Exactly what was needed for neck rigidity on my cbg's
Reviewed in the United States on February 12, 2026 by Gary Parker

Quality product
Size: 6.0x6.0x420mm
Perfect product. Great seller.
Reviewed in the United States on February 23, 2026 by Ken Arnold

Carbon fiber rods
Size: 6.0x6.0x420mm
Easy to install. Just what I was expecting f.
Reviewed in the United States on October 25, 2025 by Dick Baldwin

Great for foamy RC airplanes.
Size: 3.0x3.0x300mm
Great for adding strength to weak areas on foam rc airplanes.
Reviewed in the United States on May 13, 2024 by Troy Cade

All good and a good price
Size: 6.0x6.0x420mm
I bought these for neck reinforcement. I used the first one to stiffen the neck of an old Marting guitar with a steel tube reinforcement. Fit inside with a little shimming and epoxy .
Reviewed in the United States on September 5, 2024 by Kurt Gary

Dimensions are spot on
Size: 6.0x6.0x420mm
Just used these in a custom build for myself and so far they do what I wanted them to do. The dimensions were accurate to .002" of what was listed which was important as I had already routed the channels only to realize I was out of rods lol. Will update later when the guitar has been played for a year. Definitely a more affordable option. ... show more
Reviewed in the United States on August 1, 2026 by Adventure Dad

Light, strong, straight
Size: 6.0x6.0x420mm
I use these on cigar box guitar necks. Fit perfectly in a ¼” channel. Super strong and light weight. I’ll be buying more of these!
Reviewed in the United States on April 24, 2022 by Erich Schmidt
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