ARP Chrome Moly Fastener Nut

ARP Chrome Moly fastener nuts are high-strength chromoly steel nuts made for performance, racing, and heavy-duty use. They are also called chrome moly nuts, 4140 chromoly nuts, or high-performance hex nuts. They are designed to pair with ARP studs and bolts where standard hardware may not hold up.

Key Features:

• Chrome moly alloy construction for high strength and durability in demanding engine and chassis applications
• Precision-machined threads for accurate fit and consistent clamping load
• Heat-treated for strength to resist stretching and fatigue under high loads, vibration, and temperature cycling
• Made in the USA by ARP, a respected name in high-performance fasteners, under strict quality control
• Available in a range of options to suit different fastener applications

Whether you are building a racing engine, upgrading a street performance setup, or replacing critical fasteners, ARP Chrome Moly nuts provide reliable, repeatable clamping strength where it matters most. Select the exact option you need from the available variants.