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Part number: 300-8330
Product Details
ARP 300-8330 Cylinder Head Fasteners
Products specifications
Fastener Yield Strength (psi) 150,000 psi
Nut Finish Black oxide
Nut Material Steel
Nut Style 12-point
Nylon Insert No
Quantity Sold as a set of 10.
Self-Locking No
Size 1/4-28
Socket 5/16
Thread Size 1/4-28 RH in.
Washers Included No
Wrench Diameter 5/16 in.
Standard 12Point Nut
10Pieces

Available in a variety of sizes to suit your needs, all ARP 12-point nuts are constructed from 8740 chrome moly steel or ARP 300 Series stainless steel material, and meet ARPs highest standards of quality. Rated at 180,000 psi tensile strength, ARP 12-point nuts are manufactured in thick wall versions for optimum strength and rigidity and thin wall versions for applications with limited space requirements. All 8740 chrome moly steel nuts are black oxide finished and all stainless steel nuts are polished to a briliant luster. ARP 12-point nuts are available in 1-piece bulk, 2-piece and 10 piece packages.

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I ordered an AEM intake for my F-150 on Christmas day and received it on the 29th.  I would absolutely recommend this site to anyone looking for car parts - they had the lowest price by far and shipped fast.  Great job!
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very good price fast shipping
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helped me find the exact one i needed
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Found Autoplicity by doing Google search looking for Corsa Sport Axle Back exhaust for my 2008 GT500. By far the best price, even cheaper than other big companies with free shipping by far. Ordered them on Thursday afternoon and got them 24 hours later in NY with the standard shipping. Could'nt be happier.
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