Fasteners› Bulk Fasteners

ARP

ARP 3/8-16 SS Coarse Nyloc Hex Nut Kit

$3.51

SKU: A00M 400-8664

In Stock
In Stock
Ships by Aug 6
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

Part #: 400-8664

Nut - Locking - 3/8-16 in Thread - Hex Head - Nylon Insert - Stainless - Polished - Set of 5

MIA's Description

The ARP Nyloc Hex Nuts are a set of 5 self-locking fasteners designed for various applications. These nuts feature a hex head style with a 3/8 in.-16 thread size and a right-hand thread. They are constructed from polished stainless steel and incorporate a nylon insert for secure locking.

These fasteners boast a tensile strength of 140,000 psi, ensuring durability and reliability. The product line is ARP Nyloc Hex Nuts, and the material is described as aerospace-quality. Washers are not included with this set.

Fitment

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Specifications

BrandARP
Part NumberA00M 400-8664

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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