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Running Board mounting bolt size?

cpmartin1999

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Does anyone know the exact size (thread, length etc) of the OEM Running Board mounting bolts? i got some take offs with brackets but not the bolts?
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horbit

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I looked at mine and took a bolt off.

There are six bolts per side, two per bracket. 12mm hex head flange bolt. There are two dots on the head and the bolt has a captive washer, with a tapered end on the bolt.

I think you need 12x M8x30mm bolts with washers.
2025 4runner 6th gen Running Board mounting bolt size? IMG_2178
2025 4runner 6th gen Running Board mounting bolt size? IMG_2177
2025 4runner 6th gen Running Board mounting bolt size? IMG_2176
2025 4runner 6th gen Running Board mounting bolt size? IMG_2179
 
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cpmartin1999

SR5
Member
First Name
Chris
Joined
Oct 7, 2025
Threads
1
Messages
5
Reaction score
2
Location
Atlanta
Vehicle(s)
2025 4Runner SR5, 2024 Bronco OBX
I looked at mine and took a bolt off.

There are six bolts per side, two per bracket. 12mm hex head flange bolt. There are two dots on the head and the bolt has a captive washer, with a tapered end on the bolt.

I think you need 12x M8x30mm bolts with washers.
IMG_2178.webp
IMG_2177.webp
IMG_2176.webp
IMG_2179.webp
Thanks !! This is exactly what i needed, ill get some from hardware store, I really appreciate your help!!
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