---
product_id: 557289240
title: "T Slot Bolts for Roof Rack Cross Bars, Platform, Cargo Basket, Stainless Square T Track Bolt Adapter to Secure Bike/Ski/Kayak Rack, Solar Panel, Awning, 4mm Thick"
brand: "moroinriz"
price: "€ 29.69"
currency: EUR
in_stock: true
reviews_count: 13
category: "Moroinriz"
url: https://www.desertcart.sk/products/557289240-t-slot-bolts-for-roof-rack-cross-bars-platform-cargo
store_origin: SK
region: Slovakia
---

# 20x20x4mm Square Head Base 304 Stainless Steel Durability M6/M8 Threading Options T Slot Bolts for Roof Rack Cross Bars, Platform, Cargo Basket, Stainless Square T Track Bolt Adapter to Secure Bike/Ski/Kayak Rack, Solar Panel, Awning, 4mm Thick

**Brand:** moroinriz
**Price:** € 29.69
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock in your adventure gear with stainless steel strength!

## Quick Answers

- **What is this?** T Slot Bolts for Roof Rack Cross Bars, Platform, Cargo Basket, Stainless Square T Track Bolt Adapter to Secure Bike/Ski/Kayak Rack, Solar Panel, Awning, 4mm Thick by moroinriz
- **How much does it cost?** € 29.69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/557289240-t-slot-bolts-for-roof-rack-cross-bars-platform-cargo)

## Best For

- moroinriz enthusiasts

## Why This Product

- Trusted moroinriz brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Multi-Use Outdoor Ready:** Perfect for mounting solar panels, awnings, cargo baskets, and adventure gear.
- • **Heavy-Duty Secure Mounting:** Lock nuts and washers provide rock-solid grip for bike, ski, kayak racks & more.
- • **Marine-Grade Stainless Steel:** 304 stainless steel construction ensures rust & corrosion resistance in all environments.
- • **Universal T-Track Compatibility:** Seamlessly fits most roof rack crossbars & T-slot systems for ultimate versatility.
- • **Tool-Free, Scratch-Free Installation:** Slide-in design eliminates drilling and protects your roof rack’s finish.

## Overview

These T Slot Bolts are precision-engineered 304 stainless steel adapters designed to securely attach bike racks, ski racks, cargo baskets, solar panels, and more to your vehicle’s roof rack crossbars. Featuring a 20x20x4mm square head base and M6/M8 threading, they offer universal compatibility with most T-track systems. Their marine-grade corrosion resistance and easy slide-in installation make them the go-to hardware for millennial professionals who demand durability, style, and hassle-free setup on every outdoor excursion.

## Description

CompatibilityPerfect for roof rack with railsFor Whispbar Rail BarFor Whispbar Flush BarFor Whispbar Through Bar (Not Fit for Whispbar HD Bar)For Yakima Jetstream with T slots (Not fit for Yakima CoreBar without T slots)Some roof rack / luggage rack and cargo basket304 Stainless SteelMade of heavy duty 304 stainless steel, it features rust resistant and corrosion resistant in salt water, perfect t-track accessories for camping, touring, travel, and other outdoor activitiesHeavy Duty Rooftop Mounting Hardware Kit for Easy MountingPerfect roof rack replacement parts for your roof bars, just need to slide it into roof bar, simpler to use compared with t track clampsWide ApplicationUtility t-track bolts with matching nuts washer barrel kit for most roof rack systems, roof basket, allow you to attach bike carrier racks, kayak rack, bike carriers, ski holders, snowboard roof rack, side awning, canopy, surfboard roof rack to your roof rack bars with easeSpecItem Name: T Bolts for T TrackMaterial: 304 Stainless SteelThread Size: M6 x 1 (1/4-20), M8 x 1.25 (5/16-18) (Optional)Bolt Length: 30mm, 35mm (Optional)Square Head Base: 0.79 in x 0.79 in x 0.16 in (20mm x 20mm x 4mm)Washer: 0.04 in x 0.47 in (1mm x 12mm)Nut: 0.39 in x 0.2 in (10mm x 5mm)Fit Vehicle: SUV, ATV, UTV, RV, VANMounting Type: Roof Rack Mounting, Cross Bar Mounting, Roof Top Mounting

Review: 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.
Review: Great oem bolts for Thule racks - Worked perfect for installing my Yakima ski racks onto my Thule bed racks! Worked like oem.

## Features

- Versatile t Track Bolts - this t-track adapter accessory kit is a great solution to attach items firmly to your t track crossbar, compatible with roof rack with rails, perfect t-track adapter accessory kit to attach bike rack / ski rack / kayak rack, roof rack awning, solar panel, fishing rod holder, cargo box to roof rack cross bars, roof rack cargo basket, car rooftop platform or side rails, works well with most solar panel mounting brackets
- Technical Specification - the t bolt is made of 304 solid stainless steel, 79 in x 0.79 in x 0.16 in (20mm x 20mm x 4mm) square head base, m6 / m8 threading, 30mm / 35mm / 65mm length
- Easy to Set Up - no drilling, cleaner look, just need to slide it into the t slot of your roof bar, and won't scratch your cross bar, great alternative to roof rack t track clamp*NOTE-please check the dimension of your cross bar rail, this t bolts base is 20mm x 20mm x 4mm (L x W x Thickness)*
- Marine Resistant - stamping t slot accessories, more durable compared with welding parts, made of solid 304 stainless steel, it features rust resistant and corrosion resistant even in salt water, designed for most harsh environment, perfect t track accessories for suv / rv roof top
- What You Will Receive - roof rack mounting hardware kit, include t-bolt with lock nuts and washer, satisfying purchasing experience of your customer is our priority, please feel free to contact us if you have other questions! Thanks for your supporting!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C45WBZSV |
| Best Sellers Rank | #11,376 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #2 in Bike Car Rack Accessories |
| Brand | moroinriz |
| Color | M6x35mm,6pk |
| Date First Available | May 3, 2023 |
| Department | unisex-adult |
| Exterior Finish | Stainless Steel |
| Fastener Type | T-Bolt |
| Head Style | Square |
| Item Diameter | 6 Millimeters |
| Item Hardness | Grade 2 |
| Item Weight | 5.6 ounces |
| Manufacturer | moroinriz |
| Manufacturer Grade | Grade 304 |
| Material | Stainless Steel |
| Metal Type | Stainless Steel |
| Number of Pieces | 6 |
| Set Name | 6-Piece Set |
| Size | M6-1, 35mm Long, 4mm Thick |
| Thread Class | 1A |
| Thread Size | M6 |
| Thread Style | Right Hand |
| Thread Type | Metric |

## Product Details

- **Exterior Finish:** Stainless Steel
- **Head Style:** Square
- **Manufacturer Grade:** Grade 304
- **Material:** Stainless Steel
- **Thread Size:** M6

## Images

![T Slot Bolts for Roof Rack Cross Bars, Platform, Cargo Basket, Stainless Square T Track Bolt Adapter to Secure Bike/Ski/Kayak Rack, Solar Panel, Awning, 4mm Thick - Image 1](https://m.media-amazon.com/images/I/41AQPLyJudL.jpg)
![T Slot Bolts for Roof Rack Cross Bars, Platform, Cargo Basket, Stainless Square T Track Bolt Adapter to Secure Bike/Ski/Kayak Rack, Solar Panel, Awning, 4mm Thick - Image 2](https://m.media-amazon.com/images/I/41W20i9+VaL.jpg)
![T Slot Bolts for Roof Rack Cross Bars, Platform, Cargo Basket, Stainless Square T Track Bolt Adapter to Secure Bike/Ski/Kayak Rack, Solar Panel, Awning, 4mm Thick - Image 3](https://m.media-amazon.com/images/I/41cMXnBZJsL.jpg)
![T Slot Bolts for Roof Rack Cross Bars, Platform, Cargo Basket, Stainless Square T Track Bolt Adapter to Secure Bike/Ski/Kayak Rack, Solar Panel, Awning, 4mm Thick - Image 4](https://m.media-amazon.com/images/I/41qGTlteeOL.jpg)
![T Slot Bolts for Roof Rack Cross Bars, Platform, Cargo Basket, Stainless Square T Track Bolt Adapter to Secure Bike/Ski/Kayak Rack, Solar Panel, Awning, 4mm Thick - Image 5](https://m.media-amazon.com/images/I/41raPw21pGL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Solid T track bolts for most/all T rail systems
*by O***L on June 10, 2025*

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.

### ⭐⭐⭐⭐⭐ Great oem bolts for Thule racks
*by A***M on January 2, 2026*

Worked perfect for installing my Yakima ski racks onto my Thule bed racks! Worked like oem.

### ⭐⭐⭐⭐⭐ Perfect fit for yakima jetstream
*by A***N on May 26, 2025*

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.

## Frequently Bought Together

- T Slot Bolts for Thule, Yakima Roof Rack Cross Bars, Platform, Cargo Basket, Stainless Square T Track Bolt Adapter to Secure Bike/Ski/Kayak Rack, Solar Panel, Awning, 4mm Thick
- T Track Mount Tie Down Anchor for Roof Rack, M8 Heavy Duty Ring Shaped Eye Bolt, Stainless Steel T Bolt Eye Nut Tie Down Rings for Holding Bungee Cord, Ropes, Hooks
- moroinriz T Slot Bolts for Thule, Yakima Roof Rack Cross Bars, Platform, Cargo Basket, Stainless Square T Track Bolt Adapter to Secure Bike/Ski/Kayak Rack, Solar Panel, Awning

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-28*