SKU: 400-1210 | UPC: 672036013301
ARP 3/8″ x 1.000″ Stainless Steel 12-Point Header Bolt Kit
The ARP 400-1210 3/8″ x 1.000″ Stainless Steel 12-Point Header Bolt Kit is the premium choice for securely mounting exhaust headers on Ford, GM, Chrysler, and other V8 engines. Manufactured from high-strength stainless steel with a polished finish, these bolts offer superior corrosion resistance in harsh under-hood environments while providing the clamping force needed to prevent leaks and maintain gasket integrity under high heat and vibration. The 12-point head design allows for better wrench access in tight header locations, making installation and removal far easier than conventional hex bolts.
Key Features
- Premium Stainless Steel: Excellent corrosion resistance for long-term reliability
- 12-Point Head Design: Superior wrenching access in confined header areas
- 3/8″ x 1.000″ Size: Perfect length for most header-to-head applications
- High Tensile Strength: Far exceeds factory bolts for maximum clamping force
- Complete Kit: Includes all necessary bolts and washers for one set of headers
- Made in the USA: ARP quality trusted by professional engine builders and racers
Specifications
| Specification | Detail |
|---|---|
| Part Number | 400-1210 |
| Size | 3/8″ x 1.000″ |
| Material | Stainless Steel |
| Head Style | 12-Point |
| Finish | Polished Stainless |
| Application | Exhaust Header Mounting (Ford, GM, Chrysler V8 and more) |
| Kit Contents | 12 Bolts + Washers (covers one set of headers) |
| Country of Origin | United States |
| Warranty | Limited Lifetime (ARP) |
| Shipping Weight | Approx. 1.5 lbs |
What’s Included
- 12 x 3/8″ x 1.000″ Stainless Steel 12-Point Header Bolts
- Matching Washers
- Installation Instructions
Product Notes
- Universal header bolt kit for most V8 exhaust header applications
- Ideal upgrade over factory bolts to prevent loosening and exhaust leaks
- 12-point design allows use of 12-point sockets or wrenches for tight spaces
Installation Notes
- Estimated time: 30 to 60 minutes, easy to moderate difficulty
- Remove old bolts, clean threads, install new ARP bolts with proper torque
- Use anti-seize on threads for future removal in high-heat applications
This Part Fits
| Application | Notes |
|---|---|
| Universal | Most Ford, GM, Chrysler, and Import V8 Exhaust Headers Requiring 3/8″ x 1.000″ Bolts |
| Common Vehicles | Mustang, Camaro, Corvette, F-150, Silverado, Challenger, and many more with aftermarket or stock headers |
Why Choose ARP Stainless Steel Header Bolt Kit?
- Eliminates exhaust leaks and bolt stretching common with stock hardware
- 12-point head makes installation in tight header areas much easier
- Beautiful polished stainless finish that looks great under the hood
Frequently Asked Questions
- Q: Will this kit fit my 2018 Ford Mustang GT headers?
A: Yes, as long as your headers require 3/8″ x 1.000″ bolts – most aftermarket headers do. - Q: How many bolts are included?
A: 12 bolts enough for one complete set of V8 headers. - Q: Can I reuse my old washers?
A: ARP includes new washers always use the supplied hardware for best results. - Q: What is the warranty?
A: Covered by ARP limited lifetime warranty.
Shipping & Handling
- Method: UPS / FedEx Ground
- Availability: In stock ships same or next business day
- Packaging: Secure protective packaging
- Weight: Approx. 1.5 lbs
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