Fasteners› Wheel and Tire Fastener Kits

Gorillas Automotive Products

16-Piece Spline Drive Acorn Lug Nut Set, 12mm x 1.50

$24.00

SKU: GORILLA-21631ET

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Overview

The Gorilla Automotive 21631ET-16 is a 16-piece lug nut set designed with a spline drive and an acorn seat style. It features a 12mm x 1.50 thread size and a chrome finish. The overall length of each lug nut is 1.60 inches.
Show original supplier description
The Gorilla Automotive 21631ET-16 is a 16-piece spline drive acorn lug nut set, finished in chrome. These lug nuts feature a 12mm x 1.50 thread size, an overall length of 1.60 inches, and a shank length of 0.25 inches. The spline drive design is intended to offer enhanced security against wheel theft. Designed for a secure fit, these lug nuts have an ET seat style and an outside diameter of 20 mm with a 3 hex size. The product is sold as a bulk set, ideal for replacing a full set of lug nuts on many vehicles. While the exact vehicle fitment is not detailed in the provided evidence, the product is advertised with a "Fitment guaranteed" claim. However, buyers are advised to verify compatibility with their specific wheel and vehicle application, as some sources indicate "fitment application data" may need to be verified manually or that certain products are designed exclusively for Original Equipment Manufacturer (OEM) wheels. Specific exclusions, such as compatibility with aftermarket steel wheels, may apply. This set is intended for use with wheels and tires, which are sold separately. Autoplicity offers no hassle returns for most purchases within 30 days, and live-in-stock inventory is highlighted.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandGorillas Automotive Products
Part NumberGORILLA-21631ET
CategoryFasteners

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

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.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy