What are the M6 20 mm x 20 mm x 3.5 mm Square Carac Nut for Rhino-Rack Accessories Made of?
Updated 01/27/2026 | Published 01/06/2026
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Question:
Are these nuts stainless steel or aluminum? Rust proof?
asked by: John
0
Expert Reply:
Hey John. The Replacement M6 20 mm x 20 mm x 3.5 mm Square Carac Nut for Rhino-Rack Accessories item # RR29TB are made of steel that is then zinc coated to prevent corrosion and rust. These are sold as a 10-pack and are designed to work with Rhino-Rack Accessory Bars that fit their Pioneer Platform Racks.
If you have any additional questions, go ahead and click on the box that says Reply to Jerred H and I'll be happy to answer them.
expert reply by:
Jerred H
0
RR29TB
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(click to enlarge)
Product Page this Question was Asked From
Replacement M6 20 mm x 20 mm x 3.5 mm Square Carac Nut for Rhino-Rack Accessories - Qty 10
- Accessories and Parts
- Car Awning
- Roof Basket
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- Roof Rack
- Ski and Snowboard Racks
- Watersport Carriers
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- Rhino Rack
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Jerred H.
1/27/2026
Hey John, how did the zinc-coated steel nuts end up working with your Rhino-Rack setup? Knowing how they hold up against rust could help others looking for the same hardware.