ARP 200-8661 Standard Nyloc Hex Nut Set (5-Piece)

ARP's standard Nyloc hex nuts are precision-engineered fasteners constructed from aerospace-quality materials to meet the demanding requirements of high-performance engines. Each nut features a nylon insert that provides superior locking capability, preventing loosening from vibration while allowing for proper torque retention.

Key Features:

• Aerospace-quality construction with 180,000 psi tensile strength rating
• Nyloc design with integrated nylon insert for vibration resistance
• Black oxide finish for corrosion protection and professional appearance
• Manufactured to ARP's stringent quality control standards
• Set includes 5 hex nuts

These premium fasteners deliver the reliability and strength required for cylinder head assemblies and other critical engine applications where fastener integrity is paramount. The black oxide coating provides additional durability while the Nyloc feature ensures consistent clamping force throughout the engine's operating range.