Support Rail Bolt – N90905903
Support Rail Bolt for VW Group standard hardware. OE number N90905903. N-number standard fastener.
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Technical specifications
| Part Number | N90905903 |
| SKU | AUD-N90905903 |
| Brand | |
| Category | Clips & Fasteners |
Shipping & returns
Standard shipping
3–5 business days. Free on orders over $150.
Express delivery
Order before 2 PM for next business day delivery.
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Return unused parts within 30 days for a full refund.
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We ship worldwide. Duties may apply at destination.
Customer reviews
Verified feedback from Audi owners and independent workshops.
5.0
3 reviews
Malik Vance
November 28, 2025
Saved a trip to the dealer
Fitted to my 2017 A3 8V. Torqued to the manual figure with no sign of stretch. Thread pitch and length are spot on against the old hardware. Result is no corrosion on them after a winter of road salt.
Greta Rossi
June 28, 2025
Proper OE spec
My Q7 4M needed this doing at 45k miles. Proper grade steel rather than the soft plated stuff that rounds off. They threaded in cleanly by hand before I put a socket anywhere near them. Result is no corrosion on them after a winter of road salt. Happy to recommend it.
Mei Rahman
June 14, 2025
Right first time
Ordered this for my A1 8X after the original gave up at 59k. Proper grade steel rather than the soft plated stuff that rounds off. I replaced the whole set rather than reuse stretch bolts, as you should. Result is everything torqued down evenly with nothing binding.