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ARP 400-1209 Stainless Steel Exhaust Header Bolt Kit 3/8" 12-Point

Manufacturer

ARP

<p>Today, ARP&rsquo;s product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline and throughout the suspension and frame. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, NASCAR and NHRA drag racing and marine applications.</p>

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Part Number

400-1209
14 reviews
03/11/2036 10:28 PM
Sale Price

$31.00

In Stock (10+)

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Usually delivered within 2 days

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Product Details

ARP's 400-1209 premium exhaust header bolt kit delivers exceptional strength and corrosion resistance for demanding header installations. Engineered and manufactured entirely in-house by ARP to maintain their "zero defects" standard, this 12-piece fastener set represents the pinnacle of header hardware quality.

Key Features:

  • Manufactured from ARP's proprietary Stainless 300 alloy with polished finish
  • Rated at 170,000 PSI tensile strength—substantially stronger than Grade 8 hardware
  • Compact 12-point head design for excellent access in tight, hard-to-reach areas
  • 3/8" diameter bolts with 1.000" under head length
  • Virtually impervious to rust and corrosion, heat-tolerant for exhaust applications
  • Includes premium-quality washers and springs for secure installation

This complete bolt kit provides everything needed for professional-grade exhaust header installation, combining superior clamping force with long-term durability in high-temperature exhaust environments. The 12-point head design allows for more precise torque application with less risk of fastener damage during installation.

Products specifications

Fastener Finish

Polished

Fastener Material

Stainless steel

Fastener Style

Bolt

Head Style

12-point

Notes

5/16 in. wrench head size.

Quantity

Sold as a set of 12.

Size

3/8

Thread Size

3/8-16 in.

UHL

1

Underhead Length (in)

1.000 in.

Underhead Length (mm)

25mm

Great price, reasonable shipping time.

Product exactly as stated but once again..... All my items were shown in stock, my card was charged for full amount and yet again my order trickles in over several days in several shipments.

Simple

They had exactly what I was looking for, at a better price than the competitors. The vehicle selector pointed me in the right direction with ease.

Best service from start to finish would highly recommend

very fast delivery service thanks

No frills, free shipping.

Perfect fit - quick shipping

I am very satisfied with the product and price was great.

didn't give me more options, limited to only one

very simple and had what i needed upon search engine search. provided other trusted stores for price comparison.

Prices are among the lowest around. Had a change with my order. Customer support team was quick to respond to emails and make corrections. Will order from Autoplicity again.

excellent experience before, expect the same this time

I bought this item for my fiance and he loves it! He was completely happy with the price we paid...

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