ARP Insert Washers Set

ARP insert washers protect the top of bolt and stud holes from galling or collapsing. They suit head bolt holes, mid-motor plates and other high-wear areas that need a hardened washer.

Key Features:

• Precision CNC machining: Each washer is fully CNC machined for consistent quality.
• Through-hardened 8740 chromoly stock: The hardened material resists wear and deformation under high clamping loads.
• Insert-style design: A shoulder fits into a slightly oversized hole. It supports and reinforces the material around the hole, which helps most in softer materials such as aluminum.
• Simple installation: Oversize the hole and press the washer in.
• Versatile use: The washers work as head bolt washers and in motor mount plates. They also work in other chassis or engine applications where the hole needs reinforcement.
• Made in the USA: ARP is known for high-performance fasteners trusted in racing and performance engine building.

Choose the child item that matches your bolt or stud and hole requirements.