Certified Automotive Experts 12-Piece Header Bolt Set | 3/8"-16 Grade 5 Alloy Steel

Secure your aftermarket exhaust headers with the Certified Automotive Experts 12-Piece Header Bolt Set, designed for compatible American V8 engines from Chevrolet, Ford, and Mopar. Featuring 3/8"-16 right-hand threads, these hex-head bolts are suitable for a range of small-block and big-block engine applications.

Made from corrosion-resistant alloy steel with a polished finish, these Grade 5 header bolts are designed for durability in high-heat, high-vibration engine environments. They provide a practical fastening solution for compatible exhaust headers and iron cylinder heads, making them suitable for muscle cars, restorations, street rods, and performance builds.

Each pack contains 12 bolts. Some big-block and specialty cylinder-head configurations require 14 or 16 bolts, so additional hardware may be needed.

Key Features

• 12-Piece Set: Includes 12 header bolts per pack.
• Standard Thread Size: 3/8"-16 with right-hand threading.
• Grade 5 Strength: Designed for dependable fastening in compatible exhaust applications.
• Corrosion-Resistant Alloy Steel: Built for durability in demanding engine environments.
• Polished Finish: Provides a clean, finished appearance.
• Hex Head Design: Features a conventional hexagonal bolt head.
• Broad Engine Compatibility: Designed for listed Chevrolet, Ford, and Mopar small-block and big-block applications.
• Multiple Uses: Suitable for compatible aftermarket headers, restorations, muscle cars, and street rods.

Product Specifications

Engine Compatibility

These bolts are listed for applications including:

Compatibility depends on the specific cylinder head and header configuration. Verify thread size and required bolt quantity before ordering.

Frequently Asked Questions

Fitment Reminder

Check your engine family, cylinder-head configuration, thread size, and required bolt count before ordering. One pack includes 12 bolts, and some applications may require additional hardware.