






🔧 Lock it down, level up your adventure gear!
These T Slot Bolts are precision-engineered 304 stainless steel adapters designed to securely fasten bike racks, ski carriers, solar panels, and other rooftop accessories to most T-track roof rack crossbars. Featuring a 20x20x4mm square base and M6/M8 threading, they offer rust-resistant, marine-grade durability and easy slide-in installation without drilling, making them the ultimate upgrade for outdoor enthusiasts seeking reliable, versatile mounting hardware.
| ASIN | B0CGB1R63J |
| Best Sellers Rank | #10,439 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #2 in Bike Car Rack Accessories |
| Brand | moroinriz |
| Color | M8x30mm,6pk |
| Date First Available | August 22, 2023 |
| Exterior Finish | Stainless Steel |
| Fastener Type | T-Bolt |
| Head Style | Square |
| Head Type | Square |
| Item Diameter | 8 Millimeters |
| Item Hardness | Grade 5 |
| Item Weight | 8.4 ounces |
| Item model number | QM-BOL-15 |
| Manufacturer | moroinriz |
| Manufacturer Grade | Grade 304 |
| Material | Stainless Steel |
| Number of Pieces | 6 |
| Size | M8 |
| Thread Class | 3B |
| Thread Size | M8 |
| Thread Style | Right Hand |
| Thread Type | Metric |
O**L
Solid T track bolts for most/all T rail systems
Fit great in a standard truck bed rack rail system. I tried them in the bed rack system and in my roof top tent system and they work well - apparently the "T" bolt system is universal and should work for any "T" rail system attachment you have. Should. The hardware is not Grade 8, but it's sturdy and I was able to get good grip and tightening on it with no movement using the lock washers.
A**R
Great product, used in Retrax T slots.
These are well made and stainless steel, checked with magnet, black color also, worked well, I would buy again.
M**E
Awesome hardware
Works great, used to secure a Thule ski box. I also purchased thumb screws so I don’t have to use a wrench to tighten hardware.
R**N
Fits Perfect.
Exactly what I needed for this project. Works great!
D**N
great product
nice quality
A**N
Perfect fit for yakima jetstream
I used these on my yakima jetstream load bars to install a yakima sidewinder tandem rack. I went with the 8mm as it seemed better suited to the higher potential load of this combination. I did 3d print an insert to make the nuts removable without a tool. They seem to be very high quality and have yet to show any signs of rust.
A**R
Worth it
Worked great to attach a box to the rack. Easy to install.
S**I
Wrong size for my application
Seems to be of good quality
W**M
Für die Unterkonstruktion eine Kanuhalters benötige ich eine zuverlässige verbindung in die Aufnahmeschiene meiner Thule-Traversen. Die hier vorliegenden Nutensteine sind hierfür genau richtig. Sie bieten ein ausreichend dimensioniertes M6-Gewinde, um auch durch 3cm MDF-Platte noch ausreichend Restgewinde für die Verschraubung vorzuhalten. Einziger Wehrmutstropfen: Die Aufnahmeplatten sind unten nicht abgekantet, das erschwert das Fädeln. Ich werde hier mit dem sSchleifer nachhelfen müssen. Abgfesehen davon: Top-Basis für ein Selbstbauprojekt. 4/5 Punkte Anmerkung: Das hier rezensierte Produkt wurde uns im Zuge des Amazon Vine-Programms kostenlos zur Verfügung gestellt. Dies hat keinen Einfluss auf meine Bewertung. Ich teste und bewerte nur Equipment mit Bezug zu unseren Hobbys oder beruflichen Tätigkeiten bzw. Dinge des täglichen Gebrauchs. Ich achte darauf, dass wir Vergleichsprodukte besitzen bzw. der Artikel einen konkreten Zweck für mich oder die Familienangehhörigen erfüllt, mit denen ich zusammenlebe.
D**B
I’m very happy with this T slot bolt accessory kit — it has worked perfectly for securing various gear attachments to my roof rack’s T-track system. Whether I’m mounting a bike rack, kayak rack, cargo basket, awning, or solar panel bracket, these bolts have been solid, reliable, and easy to use. The stainless steel construction feels durable and strong, and it’s reassuring to know these bolts are rust- and corrosion-resistant even in harsh weather conditions or salt-water environments. That quality gives me confidence that they’ll hold up over time for camping, touring, road trips, and other outdoor use. Installation was straightforward — the bolts simply slide into the T-track on my Thule-compatible cross bars, and they tighten securely with the included nuts and washers. Everything fit well and held tightly, so I haven’t had any loosening or movement once mounted, even on rough roads. One thing buyers should be aware of is that these bolts come in different sizes and configurations (e.g., M6 × 35 mm, M8 × 30 mm, M8 × 65 mm, various pack counts). It’s important to measure your carrier’s T-track dimensions or check manufacturer specs before ordering so you get the size that works with your roof rack system. Once you’ve selected the correct size, though, they fit perfectly and function exactly as intended. Pros: Works very well for attaching rack accessories securely Durable stainless steel that resists rust and corrosion Easy to install and tighten Great value for a multi-piece T-track bolt kit Cons: Make sure you pick the correct size for your specific carrier/T-track system; otherwise they might not fit properly Overall, this kit worked really well for my setup and has been dependable for all my rooftop gear mounts. Highly recommended for anyone with Thule, Yakima, Whispbar, Rhino, or other compatible T-track roof rack systems — just pay attention to the size you need before purchasing.
A**H
Fits Yakima roof bars perfectly
A**E
Ok
B**S
Les articles sont bonne qualité , le diamètre est légèrement plus gros que celui de ma boîte à ski que j’ai pu agrandir facilement avec une mèche .
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