ARP Metric Hex Bolt Kit

The ARP Metric Hex Bolt Kit line gives you premium ARP fasteners for general-purpose installations on cars, boats and trailers. These metric hex head bolts are built to the same standards ARP applies to its racing hardware. They are a strong, reliable alternative to ordinary hardware-store bolts wherever a fastener can't be allowed to fail.

Key Features:

• High-strength construction: made from ARP's heat-treated 8740 chromoly or ARP 300 stainless steel, depending on the part number
• Tensile strength: nominally rated at 180,000 psi, a substantial extra margin of safety over Grade 8 hardware
• Metric thread sizes: multiple diameters, thread pitches and lengths are offered to suit a wide range of applications
• Hex head design: standard wrenching for easy installation and removal with common tools
• Universal use: suited to automotive, marine and trailer projects, from engine bay accessories to chassis and bracket mounting

Backed by ARP's reputation for precision manufacturing and rigorous quality control, these bolt kits are a dependable choice for performance builds, restorations and everyday repairs. Select the thread size and length you need from the options on this page.