🌍 Worldwide shipping · 30-day returns · Rated Excellent on Trustpilot ★★★★½
Price
$28.99
Mardatt 6-Pack M8 Car Roof Rack T Shaped Slot Bolt Kit, Stainless Steel Square T Track Bolt Adapter with Washer, Hex Nut for Bike/Ski/Kayak Rack, Solar Panel, Awning — image 1
T-Slot BoltsMardatt✓ In stock

Mardatt 6-Pack M8 Car Roof Rack T Shaped Slot Bolt Kit, Stainless Steel Square T Track Bolt Adapter with Washer, Hex Nut for Bike/Ski/Kayak Rack, Solar Panel, Awning

★★★★★
$28.99

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Size: M8
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About this item
  • What You Will Get: You will get 6pcs M8 x 30mm square T track bolts; 6pcs washers, 6pcs hex nuts, all items are packed in a plastic box for easy storage. Our kits come with all the necessary accessories to meet your various needs
  • Durable Material: Square t track bolt adapter slot nuts kit are made of quality metal, provides rust resistance, breakage resistance, and deformation resistance for long-lasting durability, suitable for long-term use
  • Dimension: These square t track bolts have a 0.78"x0.78"x 0.16"/ 20mmx20mm x4mm square head base; Its thread diameter is M8 and thread length is about 1.18inch/30mm. It can be used in wide range of roof rack crossbars, and can be easily attached and secured to roof rack accessories.
  • Easy to Use: T-bolts slide easily into T-slots and lock securely without drilling or tools, offering a clean, scratch-free installation on crossbars.Perfect for replacing broken bolts, they enable quick tool-free mounting and disassembly of roof rack baskets with stable, adjustable T-slot fitting
  • Widely Application: This T track bolts kit are widely used for securing fixtures, furniture, lathes, drilling machines, and other workshop accessories, bringing precision and flexibility to custom woodworking setups. Suitable for roof racks, roof boxes, bike and ski carriers, railings, and various vehicle applications including trucks, vans, trailers, pickups, campers, and garages.
Product description

Mardatt 6-Pack M8 30mm T Track Bolt Kit, Included Heavy Duty Square Head T Track Bolt Adapter Slot Nuts, Washers for Kayak Ski Bike Rail Carrier Woodworking and Fixtures 👑 Specification: ✨ Product Type: T Track Bolt Kit ✨ Material: Metal ✨ Size: T Track Bolts: Length: M8 x 30mm/1.2”; Head Length:20 x 20mm/0.78”x 0.78” Washers: OD: 15.6mm/0.62”; ID: 8.5mm/0.33” Hex Nut: OD: 14.5mm/0.57”; ID:8mm/0.31” ✨ Color: Silver ✨ Quantify: 6pack 👑 Why Choose Us? ✨The Perfect Set This set includes square T-slot bolts, lifting eye nuts and washers, so you won’t need to buy any additional parts. ✨Durable Our T-track bolt kit is made from quality metal, making it extremely durable and reliable—the ideal choice for you. ✨ Usage: The square t track bolt and lifting eye nuts kit is widely used for securing fixtures, equipment, furniture, drilling machines and other workshop accessories Package List: 6pcs----- M8 x 30mm square T track bolt 6pcs----- washers 6pcs -----hex nut Totally 18pcs

Product details
Brand
Mardatt
Manufacturer
Mardatt
Material
Carbon Steel
Colour
Silver
Size
M8
Part number
M2643-2648

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
★★★★★
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026
★★★★★

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025
★★★★★

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 1–2 of 10 reviews

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