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Fasteners› Wheel and Tire Fastener Kits

Gorillas Automotive Products

M14-1.50 Spline Duplex Open-End Lug Nuts

$44.36 $40.33 Save $4.03

SKU: GORILLA-K6TOS-14150GR

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 GORILLA-K6TOS-14150GR is a wheel lug nut set designed for various automotive applications. These lug nuts feature a small diameter spline duplex open-end design with a conical seat type. They are heat-treated for improved durability and have a zinc-plated finish.

The set includes 24 lug nuts and one 1378SD-KEY tool. The lug nuts have a M14-1.50 thread pitch and a 13/16" (21mm) and 7/8" dual hex size, with an outside diameter of 23 MM.
Show original supplier description
The Gorilla Automotive GORILLA-K6TOS-14150GR is a set of 24 small diameter spline duplex open-end lug nuts designed to provide a secure fit for aftermarket wheels. Featuring a conical seat type and a heat-treated construction for enhanced durability, these lug nuts offer a reliable solution for wheel security. The zinc-plated finish provides corrosion resistance. Each lug nut is engineered with a 14mm x 1.50 thread pitch and a M14-1.50 thread size. The dual hex size accommodates both 13/16" (21mm) and 7/8" tools, ensuring compatibility with a range of applications. The open-end design allows for ample stud clearance, while the small diameter spline drive requires the included 1378SD-KEY for installation and removal, offering an added layer of security. These lug nuts have an outside diameter of 23 MM and an overall length of 1 inch. The kit includes 24 lug nuts and one specialized spline key. Gorilla Automotive warrants its products to be free from defects in materials or workmanship for a period of one year from the date of delivery.

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

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Specifications

BrandGorillas Automotive Products
Part NumberGORILLA-K6TOS-14150GR
CategoryFasteners

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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.

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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.

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