Stainless steel M8 Sprinter roof rail T-bolt with self-locking nut

Square 25 mm head of the Sprinter roof rail T-bolt

Sprinter roof rail T-bolt with washer and self-locking nut

Tec Vanlife USA

Sprinter Roof Rail Track Bolt / T-Bolt (8pcs/PACK)

Name: Sprinter Roof Rail Track Bolt / T-Bolt (8pcs/PACK)
SKU: E-HW-T-RR-TB-8
Price: 26.0 USD

$26.00

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Product variants

Lock gear to your roof rails.

These stainless steel M8 bolts have a 25 x 25 mm square head that slides into the roof rail channel, so racks, crossbars and brackets bolt down wherever you need them. Eight bolts and eight self-locking nuts per pack.

Fits: 2007+ Mercedes Sprinter factory roof rails and compatible aftermarket rails, including the Tec Vanlife roof rails we carry.

Stainless steel for corrosion resistance
M8 thread with a custom 25 x 25 mm square head
8 bolts and 8 self-locking M8 nuts

Upgrading the rails too? See our Sprinter Roof Rails.

See it on your van. Add the Sprinter Roof Rail Track Bolt / T-Bolt (8pcs/PACK) to your build in our 3D Van Builder and preview it on a real Sprinter before you buy.

Product Details

Why these bolts

Sprinter roof rails take a square-head bolt that sits inside the channel and can't spin while you tighten. Standard hardware store bolts don't fit, so these are the piece most rooftop installs end up short on.

What you get

8 stainless steel M8 bolts with 25 x 25 mm square heads
8 self-locking M8 nuts

Good to know

Built by Tec Vanlife.

Fitment & Compatibility

Fits: Mercedes Sprinter 2007+ factory roof rails and compatible aftermarket rails

Not sure your build qualifies? Reach out to our team.

Specifications

Material	Stainless steel
Thread	M8
Head	25 x 25 mm square, sits in the rail channel
Quantity	8 bolts, 8 self-locking M8 nuts
Bolt length	Reach out to our team
Fits	2007+ Sprinter factory roof rails and compatible aftermarket rails

What's in the Box

8 stainless steel M8 square-head bolts
8 self-locking M8 nuts

DIY FriendlyEasy

Drilling RequiredNo

Slide the square heads into the rail channel, move them under your bracket holes, set the bracket over the bolts and tighten the self-locking nuts. No drilling. Reach out to our team at products@sandyvans.com or (619) 812-1903 with questions.

Mistakes to avoid

Checking bolt length after the bracket's already on the roof; confirm it first
Reusing self-locking nuts many times; they hold best when fresh

Tools You'll Need

13 mm wrench or socket
Ladder

See all Sandy Vans install videos & manuals →

How to choose roof rail bolts

1. Rail type

Sprinter factory rails and compatible aftermarket rails take a square-head M8 bolt.

How to choose: Confirm your rail channel takes a 25 x 25 mm head.

2. Quantity

Most racks and brackets use two to four bolts per mount.

How to choose: Count mounting points on every accessory and order packs of eight to match.

3. Length

Bolt length has to clear the bracket plus the nut.

How to choose: Check your bracket thickness, then reach out if you're unsure.

Before you order

Confirm your rails take a square-head M8 bolt
Count your mounting points
Check bracket thickness

How these bolts stack up

Fit: Sprinter factory rails and compatible aftermarket rails
Material: stainless steel
Pack: 8 bolts with self-locking nuts
Rails: pair with our Sprinter Roof Rails

Will these fit my factory Sprinter roof rails?

Yes. They're made for 2007+ Mercedes Sprinter factory roof rails.

Do they fit the Tec Vanlife roof rails?

Yes. Those rails use the same custom M8 bolt with a 25 x 25 mm square head.

What can I mount with them?

Roof racks, crossbars, brackets and other accessories that bolt to the rail channel.

How long are the bolts?

Reach out to our team and we'll confirm the length against your bracket thickness.

How many come in a pack?

Eight bolts and eight self-locking nuts.

How does shipping work on this item?

This item ships direct from the manufacturer, Tec Vanlife. Shipping is calculated at checkout for your address and may arrive separately from other items in your order.

Do you install products for customers?

Yes. Many SV products can be professionally installed at our San Diego shop. Reach out to our team to schedule. Email products@sandyvans.com or call 619-812-1903.

What is your shipping and return policy?

Most SV products ship free. For returns, see our Returns & Refunds policy or reach out to our team at products@sandyvans.com.

Can I reach a real person with questions?

Always. We are a small team in San Diego. Email products@sandyvans.com or call 619-812-1903 and you'll get a real answer, not a chatbot.

Where are you located?

9393 Trade Pl, San Diego, CA. Come visit the shop, we'd love to show you around.

Does Sandy Vans offer financing?

Yes. Many financing options are available. Set up a call with a sales associate to learn more.

Still have a question? Email the team and you'll get a real answer.