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ARP 200-8662 Hex Nyloc Nuts -5/16in-18 (5)

Manufacturer

Picture for manufacturer ARP

Part Number

200-8662
8 reviews
Sale Price

$5.08

Estimated ship date Tuesday, February 02

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Product Details

ARP hex nyloc nuts are precision-manufactured fasteners designed for high-performance engine applications where secure, vibration-resistant fastening is critical. This 5-piece kit features 5/16-18 coarse thread hex nuts with integrated nylon locking inserts.

Key Features:

  • 5/16-18 coarse thread pitch for standard automotive applications
  • Cadmium plating provides excellent corrosion resistance and smooth installation
  • Nylon insert locking mechanism prevents loosening from vibration
  • Precision-machined hex design for consistent torque application
  • Kit includes 5 nuts for convenience

These nyloc nuts are ideal for cylinder head applications, intake manifolds, and other critical engine fastening points where conventional lock washers may not provide adequate security. The nylon insert creates friction against the bolt threads, maintaining proper clamping force even in high-vibration environments.

Products specifications

Material

Cad-Plated

Size

5/16-18

So far so good.

I searched the entire web looking for the best price on my item and found that Autoplicity beat everybody else in price & quality. Search no more!

Best price I could find on the net and super fast shipping.

Easy to find and price was good. The product fit well. Works well so far

Autoplicity had the best price on the VP fuel jugs, I ask if the could ship them out quickly and they did.

I ordered a new battery for my Harley. I wanted a battery that would last and be of good quality. I bought a Odyssey PC545 battery it stats stat it will last up to 8 years and is military grade. My package arrived quick and in good shape. My order number is #5600. Thanks

i was skeptical about this site but after reading the reviews and them having the lowest price i could find for my part i pulled the trigger and wasn't disappointed. fast shipping and low prices with great customer service will shop with them again if they have what im looking for.

I placed an order,18852,for a Husky Liner on June 19th and received it on June 21st. They have a great price and low cost shipping.

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