ARP 100-1110 Header Bolts with Hex Heads – 8740 Chrome Moly, Black Oxide, 16-Piece Kit
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Description
xDesigned for exhaust header installation, ARP's premium bolt kit blends high-grade metallurgy with precision machining to deliver reliable, high-performance fasteners. This set supports demanding engine bays where fit and consistency matter, offering a balance of strength, finish, and ease of use.
Premium materials and strength
Crafted from heat-treated 8740 chrome moly steel and finished with a black oxide coating, these bolts meet exacting standards for durability. The combination of material and finish provides a robust, low-gloss appearance that remains steady under heat and vibration. You get a fastener that combines stiffness with controlled behavior under load.
- Heat-treated chrome moly steel for reliable strength
- Black oxide finish for a clean look and surface protection
- 170,000 psi tensile strength substantially higher than typical hardware
- Traditional hex style heads for easy torque with common tools
- Premium washers included for even load distribution
Designed for installation and quality control
The set uses 3/8 inch diameter bolts with a 1.000 under head length, and includes 16 pieces to support a complete header installation. ARP controls every step of production in-house to monitor quality and maintain tight tolerances.
- 3/8 inch diameter with 1.000 under head length
- 16 piece set includes washers
- Hex heads provide reliable torque interface
- In-house manufacturing supports stringent quality control
In real world use, these bolts offer a solid, professional fit and a clean finish that handles heat and engine vibration. While outcomes vary by application, the kit is designed to support strong, dependable header mounting without overpromising on results.
FAQ
Q: What makes ARP 100-1110 header bolts suitable for exhaust installations?
A: Heat-treated 8740 chrome moly steel, black oxide finish, and 170,000 psi tensile strength provide strong, durable fasteners for header mounting.
Q: How many pieces are in the kit and what hardware is included?
A: The kit includes 16 bolts, 3/8 inch diameter with a 1.000 under head length, plus premium washers.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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