🌍 Worldwide shipping · 30-day returns · Rated Excellent on Trustpilot ★★★★½
Price
$42.99
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Nut & Bolt SetsDAIRYCOF✓ In stock

DAIRYCOF T Track Bolts 8 PCS Roof Rack Bolts M8 x 40 mm with Thumb Screws m8 with nut Washer 20x20×4mm Square Sliding Blocks for roof Rack Rail Carrier (8, M8×40mm)

$42.99

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5 available
NumberOfItems
Size: M8×40mm
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About this item
  • 🔩 HIGH-GRADE STAINLESS STEEL: Our T-nut bolts for roof bars are made from rust-proof stainless steel, offering exceptional strength and weather resistance. Perfect for outdoor adventures – they stand up to sun, rain, and storms, ensuring safety on every journey!
  • 🛠 QUICK 3-MINUTE INSTALLATION: Features a practical 20x20 mm square head and large bearing surface. Secures roof luggage firmly – no slipping! Ideal for DIYers: No special tools needed, just tighten them down and you're ready to go.
  • 🚗 UNIVERSAL FIT FOR ALL ROOF ACCESSORIES: Compatible with roof bars, roof boxes, bike carriers, and ski racks. Works with brands like Thule, Audi, BMW, and more. Also suitable for handrails or T-slot rails – your versatile solution for car and home!
  • 📏 PRECISE M8 THREAD FIT: Technical specs: M8 thread (40 mm length), 38 mm head width. Includes 8x bolts, washers (1.2 cm), and nuts (1 cm). Note: Before buying, ensure your roof rail groove width is 8 mm.
  • 📦 COMPLETE KIT READY TO USE: What's in the box: 8x T-nut bolts + 8x star knobs + 8x washers + 8x nuts. Everything's ready to use straight away – saves time and guarantees a secure hold for skis, luggage, or bikes!
Product description

DAIRYCOF 8 Sets T-Nuts M8x40mm, 20x20x4mm T-Nuts for Roof Bars – Includes Star Knob Nuts & Washers – Compatible with Roof Bars, Handrail Bars, Bike Racks & Rails 📦 COMPLETE KIT, READY TO USE: What's included: 8x T-nut bolts + 8x star knob nuts + 8x washers + 8x nuts. Everything's ready to go straight out of the box – saves you time and guarantees a rock-solid hold for skis, suitcases or bikes!

Product details
Brand
DAIRYCOF
Manufacturer
DAIRYCOF
Material
Stainless Steel
Size
M8×40mm
Model number
PYMY-A0049-4-EU
Part number
PYMY-B0049-8-EU

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 12 of 10 reviews

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