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ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.
Secure your automotive components with these high-quality ARP M8 x 1.25 x 40mm Hex Black Oxide Bolts. ARP is a leader in fastener technology, providing exceptional strength and reliability for performance applications. These bolts feature a durable black oxide coating for enhanced corrosion resistance and a clean, professional appearance. The standard hex head design ensures compatibility with common tools for easy installation.
Perfect for a variety of automotive uses, including interior trim, under-hood components, and custom fabrication projects, these 40mm M8 bolts offer a reliable fastening solution. The M8 x 1.25 thread pitch is a common standard, making them highly versatile. ARP's precision manufacturing guarantees consistent quality and performance, ensuring your build is held together by the best. Choose ARP for dependable hardware that stands up to the demands of your vehicle. Find them at GGCRACING.
| Brand | ARP |
|---|---|
| Manufacturer part number | 661-1005 |
| GGC SKU | ARP661-1005 |
| UPC / GTIN | 672036025281 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 6 × 3.5 × 0.5 in |
|---|---|
| Shipping weight | 0.27 lb |
Universal fit — check measurements. Compare the dimensions and specifications on this page with your application before you order.
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