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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.
When building a high-performance engine or chassis, fastener integrity is the difference between a podium finish and a DNF. Auto Racing Products 1/2-13 Hex Nyloc Nuts are designed to withstand the harsh conditions of the track. Featuring a precision-engineered nylon insert, these nuts lock firmly onto the stud or bolt, resisting the loosening effects of intense engine vibration and thermal expansion. The high-quality polished stainless steel construction ensures these nuts remain free from rust and oxidation, maintaining their aesthetic appeal and structural integrity over time.
These 1/2-13 Nyloc nuts are essential for critical mounting points where security is paramount. The polished finish adds a clean, professional aesthetic to your engine bay, reflecting the quality of your build. By utilizing ARP's advanced manufacturing processes, these nuts provide consistent clamping force and reliability that standard hardware simply cannot match. Whether you are upgrading your suspension components or securing engine accessories, these fasteners provide the durability required for competitive racing environments. Find all your essential racing hardware and performance upgrades right here at GGCRACING.
| Brand | Auto Racing Products |
|---|---|
| Manufacturer part number | 400-8667 |
| GGC SKU | BQDN_400-8667 |
| UPC / GTIN | 672036013783 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 6 × 4 × 0.63 in |
|---|---|
| Shipping weight | 0.23 lb |
Vehicle fitment is not listed for this part. Send us your year, make and model at sales@ggcracing.com and we will confirm before you order.
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