Stiffy heavy-duty tube coupler stiffiners feature a deep spiral groove for maximum epoxy adhesion. These super heavy-duty wall stiffeners are designed to be epoxied inside of our standard tube couplers to greatly increase their lateral strength. Snapping off a payload at the joint under high-speed stress (as occurs when flying at or near
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Works great!
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Steve · September 26, 2026
Fast service and delivery
Always get my order quickly and accurately
A
Anthony · November 22, 2021
Loc components and kits
These tube stiffeners are great. Just like all of LOC components and kit, they set the bar that all companies try to achieve. I have been using their components exclusively for custom rocket and purchasing their kits since the 90’s and have had nothing but success. The customer service and speed of shipment are excellent as well.